diff --git a/__tests__/data/zulu-linux.json b/__tests__/data/zulu-linux.json
index 94f89b63..c74487e2 100644
--- a/__tests__/data/zulu-linux.json
+++ b/__tests__/data/zulu-linux.json
@@ -6,9 +6,9 @@
     "java_version": [
       8,
       0,
-      5,
-      13
+      5
     ],
+    "openjdk_build_number": 13,
     "distro_version": [
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       1,
@@ -25,9 +25,9 @@
     "java_version": [
       8,
       0,
-      11,
-      12
+      11
     ],
+    "openjdk_build_number": 12,
     "distro_version": [
       8,
       2,
@@ -44,9 +44,9 @@
     "java_version": [
       8,
       0,
-      131,
-      11
+      131
     ],
+    "openjdk_build_number": 11,
     "distro_version": [
       8,
       21,
@@ -63,9 +63,9 @@
     "java_version": [
       8,
       0,
-      144,
-      1
+      144
     ],
+    "openjdk_build_number": 1,
     "distro_version": [
       8,
       23,
@@ -82,9 +82,9 @@
     "java_version": [
       8,
       0,
-      152,
-      16
+      152
     ],
+    "openjdk_build_number": 16,
     "distro_version": [
       8,
       25,
@@ -101,9 +101,9 @@
     "java_version": [
       8,
       0,
-      252,
-      14
+      252
     ],
+    "openjdk_build_number": 14,
     "distro_version": [
       8,
       46,
@@ -120,9 +120,9 @@
     "java_version": [
       8,
       0,
-      262,
-      17
+      262
     ],
+    "openjdk_build_number": 17,
     "distro_version": [
       8,
       48,
@@ -139,9 +139,9 @@
     "java_version": [
       8,
       0,
-      262,
-      19
+      262
     ],
+    "openjdk_build_number": 19,
     "distro_version": [
       8,
       48,
@@ -158,9 +158,9 @@
     "java_version": [
       8,
       0,
-      262,
-      18
+      262
     ],
+    "openjdk_build_number": 18,
     "distro_version": [
       8,
       48,
@@ -177,9 +177,9 @@
     "java_version": [
       8,
       0,
-      282,
-      8
+      282
     ],
+    "openjdk_build_number": 8,
     "distro_version": [
       8,
       52,
@@ -196,9 +196,9 @@
     "java_version": [
       9,
       0,
-      0,
       0
     ],
+    "openjdk_build_number": 0,
     "distro_version": [
       9,
       0,
@@ -215,9 +215,9 @@
     "java_version": [
       9,
       0,
-      1,
-      0
+      1
     ],
+    "openjdk_build_number": 0,
     "distro_version": [
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       0,
@@ -234,9 +234,9 @@
     "java_version": [
       10,
       0,
-      1,
-      9
+      1
     ],
+    "openjdk_build_number": 9,
     "distro_version": [
       10,
       2,
@@ -253,9 +253,9 @@
     "java_version": [
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       0,
-      2,
-      13
+      2
     ],
+    "openjdk_build_number": 13,
     "distro_version": [
       10,
       3,
@@ -272,9 +272,9 @@
     "java_version": [
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       0,
-      1,
-      13
+      1
     ],
+    "openjdk_build_number": 13,
     "distro_version": [
       11,
       2,
@@ -291,9 +291,9 @@
     "java_version": [
       11,
       0,
-      2,
-      7
+      2
     ],
+    "openjdk_build_number": 7,
     "distro_version": [
       11,
       29,
@@ -310,9 +310,9 @@
     "java_version": [
       11,
       0,
-      3,
-      7
+      3
     ],
+    "openjdk_build_number": 7,
     "distro_version": [
       11,
       31,
@@ -329,9 +329,9 @@
     "java_version": [
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       0,
-      5,
-      10
+      5
     ],
+    "openjdk_build_number": 10,
     "distro_version": [
       11,
       35,
@@ -348,9 +348,9 @@
     "java_version": [
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       0,
-      5,
-      10
+      5
     ],
+    "openjdk_build_number": 10,
     "distro_version": [
       11,
       35,
@@ -367,9 +367,9 @@
     "java_version": [
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       0,
-      5,
-      10
+      5
     ],
+    "openjdk_build_number": 10,
     "distro_version": [
       11,
       35,
@@ -386,9 +386,9 @@
     "java_version": [
       11,
       0,
-      10,
-      9
+      10
     ],
+    "openjdk_build_number": 9,
     "distro_version": [
       11,
       45,
@@ -405,9 +405,9 @@
     "java_version": [
       12,
       0,
-      0,
-      33
+      0
     ],
+    "openjdk_build_number": 33,
     "distro_version": [
       12,
       1,
@@ -424,9 +424,9 @@
     "java_version": [
       12,
       0,
-      1,
-      12
+      1
     ],
+    "openjdk_build_number": 12,
     "distro_version": [
       12,
       2,
@@ -443,9 +443,9 @@
     "java_version": [
       12,
       0,
-      2,
-      3
+      2
     ],
+    "openjdk_build_number": 3,
     "distro_version": [
       12,
       3,
@@ -462,9 +462,9 @@
     "java_version": [
       13,
       0,
-      0,
-      33
+      0
     ],
+    "openjdk_build_number": 33,
     "distro_version": [
       13,
       27,
@@ -481,9 +481,9 @@
     "java_version": [
       13,
       0,
-      1,
-      10
+      1
     ],
+    "openjdk_build_number": 10,
     "distro_version": [
       13,
       28,
@@ -500,9 +500,9 @@
     "java_version": [
       13,
       0,
-      2,
-      6
+      2
     ],
+    "openjdk_build_number": 6,
     "distro_version": [
       13,
       29,
@@ -519,9 +519,9 @@
     "java_version": [
       13,
       0,
-      6,
-      5
+      6
     ],
+    "openjdk_build_number": 5,
     "distro_version": [
       13,
       37,
@@ -538,9 +538,9 @@
     "java_version": [
       14,
       0,
-      0,
-      36
+      0
     ],
+    "openjdk_build_number": 36,
     "distro_version": [
       14,
       27,
@@ -557,9 +557,9 @@
     "java_version": [
       14,
       0,
-      1,
-      8
+      1
     ],
+    "openjdk_build_number": 8,
     "distro_version": [
       14,
       28,
@@ -576,9 +576,9 @@
     "java_version": [
       14,
       0,
-      2,
-      12
+      2
     ],
+    "openjdk_build_number": 12,
     "distro_version": [
       14,
       29,
@@ -595,9 +595,9 @@
     "java_version": [
       15,
       0,
-      0,
-      36
+      0
     ],
+    "openjdk_build_number": 36,
     "distro_version": [
       15,
       27,
@@ -614,9 +614,9 @@
     "java_version": [
       15,
       0,
-      1,
-      8
+      1
     ],
+    "openjdk_build_number": 8,
     "distro_version": [
       15,
       28,
@@ -633,9 +633,9 @@
     "java_version": [
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       0,
-      1,
-      9
+      1
     ],
+    "openjdk_build_number": 9,
     "distro_version": [
       15,
       28,
@@ -652,9 +652,9 @@
     "java_version": [
       15,
       0,
-      2,
-      7
+      2
     ],
+    "openjdk_build_number": 7,
     "distro_version": [
       15,
       29,
@@ -671,9 +671,9 @@
     "java_version": [
       21,
       0,
-      2,
-      6
+      2
     ],
+    "openjdk_build_number": 6,
     "distro_version": [
       21,
       32,
diff --git a/__tests__/data/zulu-releases-default.json b/__tests__/data/zulu-releases-default.json
index 52a61367..16ed9777 100644
--- a/__tests__/data/zulu-releases-default.json
+++ b/__tests__/data/zulu-releases-default.json
@@ -6,9 +6,9 @@
     "java_version": [
       8,
       0,
-      5,
-      13
+      5
     ],
+    "openjdk_build_number": 13,
     "distro_version": [
       8,
       1,
@@ -25,9 +25,9 @@
     "java_version": [
       8,
       0,
-      11,
-      12
+      11
     ],
+    "openjdk_build_number": 12,
     "distro_version": [
       8,
       2,
@@ -44,9 +44,9 @@
     "java_version": [
       8,
       0,
-      131,
-      11
+      131
     ],
+    "openjdk_build_number": 11,
     "distro_version": [
       8,
       21,
@@ -63,9 +63,9 @@
     "java_version": [
       8,
       0,
-      144,
-      1
+      144
     ],
+    "openjdk_build_number": 1,
     "distro_version": [
       8,
       23,
@@ -82,9 +82,9 @@
     "java_version": [
       8,
       0,
-      152,
-      16
+      152
     ],
+    "openjdk_build_number": 16,
     "distro_version": [
       8,
       25,
@@ -101,9 +101,9 @@
     "java_version": [
       8,
       0,
-      252,
-      14
+      252
     ],
+    "openjdk_build_number": 14,
     "distro_version": [
       8,
       46,
@@ -120,9 +120,9 @@
     "java_version": [
       8,
       0,
-      262,
-      17
+      262
     ],
+    "openjdk_build_number": 17,
     "distro_version": [
       8,
       48,
@@ -139,9 +139,9 @@
     "java_version": [
       8,
       0,
-      262,
-      19
+      262
     ],
+    "openjdk_build_number": 19,
     "distro_version": [
       8,
       48,
@@ -158,9 +158,9 @@
     "java_version": [
       8,
       0,
-      262,
-      18
+      262
     ],
+    "openjdk_build_number": 18,
     "distro_version": [
       8,
       48,
@@ -177,9 +177,9 @@
     "java_version": [
       8,
       0,
-      282,
-      8
+      282
     ],
+    "openjdk_build_number": 8,
     "distro_version": [
       8,
       52,
@@ -196,9 +196,9 @@
     "java_version": [
       9,
       0,
-      0,
       0
     ],
+    "openjdk_build_number": 0,
     "distro_version": [
       9,
       0,
@@ -215,9 +215,9 @@
     "java_version": [
       9,
       0,
-      1,
-      0
+      1
     ],
+    "openjdk_build_number": 0,
     "distro_version": [
       9,
       0,
@@ -234,9 +234,9 @@
     "java_version": [
       10,
       0,
-      1,
-      9
+      1
     ],
+    "openjdk_build_number": 9,
     "distro_version": [
       10,
       2,
@@ -253,9 +253,9 @@
     "java_version": [
       10,
       0,
-      2,
-      13
+      2
     ],
+    "openjdk_build_number": 13,
     "distro_version": [
       10,
       3,
@@ -272,9 +272,9 @@
     "java_version": [
       11,
       0,
-      1,
-      13
+      1
     ],
+    "openjdk_build_number": 13,
     "distro_version": [
       11,
       2,
@@ -291,9 +291,9 @@
     "java_version": [
       11,
       0,
-      2,
-      7
+      2
     ],
+    "openjdk_build_number": 7,
     "distro_version": [
       11,
       29,
@@ -310,9 +310,9 @@
     "java_version": [
       11,
       0,
-      3,
-      7
+      3
     ],
+    "openjdk_build_number": 7,
     "distro_version": [
       11,
       31,
@@ -329,9 +329,9 @@
     "java_version": [
       11,
       0,
-      5,
-      10
+      5
     ],
+    "openjdk_build_number": 10,
     "distro_version": [
       11,
       35,
@@ -348,9 +348,9 @@
     "java_version": [
       11,
       0,
-      5,
-      10
+      5
     ],
+    "openjdk_build_number": 10,
     "distro_version": [
       11,
       35,
@@ -367,9 +367,9 @@
     "java_version": [
       11,
       0,
-      5,
-      10
+      5
     ],
+    "openjdk_build_number": 10,
     "distro_version": [
       11,
       35,
@@ -386,9 +386,9 @@
     "java_version": [
       11,
       0,
-      10,
-      9
+      10
     ],
+    "openjdk_build_number": 9,
     "distro_version": [
       11,
       45,
@@ -405,9 +405,9 @@
     "java_version": [
       12,
       0,
-      0,
-      33
+      0
     ],
+    "openjdk_build_number": 33,
     "distro_version": [
       12,
       1,
@@ -424,9 +424,9 @@
     "java_version": [
       12,
       0,
-      1,
-      12
+      1
     ],
+    "openjdk_build_number": 12,
     "distro_version": [
       12,
       2,
@@ -443,9 +443,9 @@
     "java_version": [
       12,
       0,
-      2,
-      3
+      2
     ],
+    "openjdk_build_number": 3,
     "distro_version": [
       12,
       3,
@@ -462,9 +462,9 @@
     "java_version": [
       13,
       0,
-      0,
-      33
+      0
     ],
+    "openjdk_build_number": 33,
     "distro_version": [
       13,
       27,
@@ -481,9 +481,9 @@
     "java_version": [
       13,
       0,
-      1,
-      10
+      1
     ],
+    "openjdk_build_number": 10,
     "distro_version": [
       13,
       28,
@@ -500,9 +500,9 @@
     "java_version": [
       13,
       0,
-      2,
-      6
+      2
     ],
+    "openjdk_build_number": 6,
     "distro_version": [
       13,
       29,
@@ -519,9 +519,9 @@
     "java_version": [
       13,
       0,
-      6,
-      5
+      6
     ],
+    "openjdk_build_number": 5,
     "distro_version": [
       13,
       37,
@@ -538,9 +538,9 @@
     "java_version": [
       14,
       0,
-      0,
-      36
+      0
     ],
+    "openjdk_build_number": 36,
     "distro_version": [
       14,
       27,
@@ -557,9 +557,9 @@
     "java_version": [
       14,
       0,
-      1,
-      8
+      1
     ],
+    "openjdk_build_number": 8,
     "distro_version": [
       14,
       28,
@@ -576,9 +576,9 @@
     "java_version": [
       14,
       0,
-      2,
-      12
+      2
     ],
+    "openjdk_build_number": 12,
     "distro_version": [
       14,
       29,
@@ -595,9 +595,9 @@
     "java_version": [
       15,
       0,
-      0,
-      36
+      0
     ],
+    "openjdk_build_number": 36,
     "distro_version": [
       15,
       27,
@@ -614,9 +614,9 @@
     "java_version": [
       15,
       0,
-      1,
-      8
+      1
     ],
+    "openjdk_build_number": 8,
     "distro_version": [
       15,
       28,
@@ -633,9 +633,9 @@
     "java_version": [
       15,
       0,
-      1,
-      9
+      1
     ],
+    "openjdk_build_number": 9,
     "distro_version": [
       15,
       28,
@@ -652,9 +652,9 @@
     "java_version": [
       15,
       0,
-      2,
-      7
+      2
     ],
+    "openjdk_build_number": 7,
     "distro_version": [
       15,
       29,
diff --git a/__tests__/data/zulu-windows.json b/__tests__/data/zulu-windows.json
index 7e44242f..dcfb9462 100644
--- a/__tests__/data/zulu-windows.json
+++ b/__tests__/data/zulu-windows.json
@@ -6,9 +6,9 @@
     "java_version": [
       8,
       0,
-      5,
-      13
+      5
     ],
+    "openjdk_build_number": 13,
     "distro_version": [
       8,
       1,
@@ -25,9 +25,9 @@
     "java_version": [
       8,
       0,
-      11,
-      12
+      11
     ],
+    "openjdk_build_number": 12,
     "distro_version": [
       8,
       2,
@@ -44,9 +44,9 @@
     "java_version": [
       8,
       0,
-      131,
-      11
+      131
     ],
+    "openjdk_build_number": 11,
     "distro_version": [
       8,
       21,
@@ -63,9 +63,9 @@
     "java_version": [
       8,
       0,
-      144,
-      1
+      144
     ],
+    "openjdk_build_number": 1,
     "distro_version": [
       8,
       23,
@@ -82,9 +82,9 @@
     "java_version": [
       8,
       0,
-      152,
-      16
+      152
     ],
+    "openjdk_build_number": 16,
     "distro_version": [
       8,
       25,
@@ -101,9 +101,9 @@
     "java_version": [
       8,
       0,
-      252,
-      14
+      252
     ],
+    "openjdk_build_number": 14,
     "distro_version": [
       8,
       46,
@@ -120,9 +120,9 @@
     "java_version": [
       8,
       0,
-      262,
-      17
+      262
     ],
+    "openjdk_build_number": 17,
     "distro_version": [
       8,
       48,
@@ -139,9 +139,9 @@
     "java_version": [
       8,
       0,
-      262,
-      19
+      262
     ],
+    "openjdk_build_number": 19,
     "distro_version": [
       8,
       48,
@@ -158,9 +158,9 @@
     "java_version": [
       8,
       0,
-      262,
-      18
+      262
     ],
+    "openjdk_build_number": 18,
     "distro_version": [
       8,
       48,
@@ -177,9 +177,9 @@
     "java_version": [
       8,
       0,
-      282,
-      8
+      282
     ],
+    "openjdk_build_number": 8,
     "distro_version": [
       8,
       52,
@@ -196,9 +196,9 @@
     "java_version": [
       9,
       0,
-      0,
       0
     ],
+    "openjdk_build_number": 0,
     "distro_version": [
       9,
       0,
@@ -215,9 +215,9 @@
     "java_version": [
       9,
       0,
-      1,
-      0
+      1
     ],
+    "openjdk_build_number": 0,
     "distro_version": [
       9,
       0,
@@ -234,9 +234,9 @@
     "java_version": [
       10,
       0,
-      1,
-      9
+      1
     ],
+    "openjdk_build_number": 9,
     "distro_version": [
       10,
       2,
@@ -253,9 +253,9 @@
     "java_version": [
       10,
       0,
-      2,
-      13
+      2
     ],
+    "openjdk_build_number": 13,
     "distro_version": [
       10,
       3,
@@ -272,9 +272,9 @@
     "java_version": [
       11,
       0,
-      1,
-      13
+      1
     ],
+    "openjdk_build_number": 13,
     "distro_version": [
       11,
       2,
@@ -291,9 +291,9 @@
     "java_version": [
       11,
       0,
-      2,
-      7
+      2
     ],
+    "openjdk_build_number": 7,
     "distro_version": [
       11,
       29,
@@ -310,9 +310,9 @@
     "java_version": [
       11,
       0,
-      3,
-      7
+      3
     ],
+    "openjdk_build_number": 7,
     "distro_version": [
       11,
       31,
@@ -329,9 +329,9 @@
     "java_version": [
       11,
       0,
-      5,
-      10
+      5
     ],
+    "openjdk_build_number": 10,
     "distro_version": [
       11,
       35,
@@ -348,9 +348,9 @@
     "java_version": [
       11,
       0,
-      5,
-      10
+      5
     ],
+    "openjdk_build_number": 10,
     "distro_version": [
       11,
       35,
@@ -367,9 +367,9 @@
     "java_version": [
       11,
       0,
-      5,
-      10
+      5
     ],
+    "openjdk_build_number": 10,
     "distro_version": [
       11,
       35,
@@ -386,9 +386,9 @@
     "java_version": [
       11,
       0,
-      10,
-      9
+      10
     ],
+    "openjdk_build_number": 9,
     "distro_version": [
       11,
       45,
@@ -405,9 +405,9 @@
     "java_version": [
       12,
       0,
-      0,
-      33
+      0
     ],
+    "openjdk_build_number": 33,
     "distro_version": [
       12,
       1,
@@ -424,9 +424,9 @@
     "java_version": [
       12,
       0,
-      1,
-      12
+      1
     ],
+    "openjdk_build_number": 12,
     "distro_version": [
       12,
       2,
@@ -443,9 +443,9 @@
     "java_version": [
       12,
       0,
-      2,
-      3
+      2
     ],
+    "openjdk_build_number": 3,
     "distro_version": [
       12,
       3,
@@ -462,9 +462,9 @@
     "java_version": [
       13,
       0,
-      0,
-      33
+      0
     ],
+    "openjdk_build_number": 33,
     "distro_version": [
       13,
       27,
@@ -481,9 +481,9 @@
     "java_version": [
       13,
       0,
-      1,
-      10
+      1
     ],
+    "openjdk_build_number": 10,
     "distro_version": [
       13,
       28,
@@ -500,9 +500,9 @@
     "java_version": [
       13,
       0,
-      2,
-      6
+      2
     ],
+    "openjdk_build_number": 6,
     "distro_version": [
       13,
       29,
@@ -519,9 +519,9 @@
     "java_version": [
       13,
       0,
-      6,
-      5
+      6
     ],
+    "openjdk_build_number": 5,
     "distro_version": [
       13,
       37,
@@ -538,9 +538,9 @@
     "java_version": [
       14,
       0,
-      0,
-      36
+      0
     ],
+    "openjdk_build_number": 36,
     "distro_version": [
       14,
       27,
@@ -557,9 +557,9 @@
     "java_version": [
       14,
       0,
-      1,
-      8
+      1
     ],
+    "openjdk_build_number": 8,
     "distro_version": [
       14,
       28,
@@ -576,9 +576,9 @@
     "java_version": [
       14,
       0,
-      2,
-      12
+      2
     ],
+    "openjdk_build_number": 12,
     "distro_version": [
       14,
       29,
@@ -595,9 +595,9 @@
     "java_version": [
       15,
       0,
-      0,
-      36
+      0
     ],
+    "openjdk_build_number": 36,
     "distro_version": [
       15,
       27,
@@ -614,9 +614,9 @@
     "java_version": [
       15,
       0,
-      1,
-      8
+      1
     ],
+    "openjdk_build_number": 8,
     "distro_version": [
       15,
       28,
@@ -633,9 +633,9 @@
     "java_version": [
       15,
       0,
-      1,
-      9
+      1
     ],
+    "openjdk_build_number": 9,
     "distro_version": [
       15,
       28,
@@ -652,9 +652,9 @@
     "java_version": [
       15,
       0,
-      2,
-      7
+      2
     ],
+    "openjdk_build_number": 7,
     "distro_version": [
       15,
       29,
@@ -671,9 +671,9 @@
     "java_version": [
       17,
       0,
-      10,
-      7
+      10
     ],
+    "openjdk_build_number": 7,
     "distro_version": [
       17,
       48,
diff --git a/dist/setup/index.js b/dist/setup/index.js
index b4eff3af..aa5c25f3 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -80691,8 +80691,14 @@ class ZuluDistribution extends base_installer_1.JavaBase {
         return __awaiter(this, void 0, void 0, function* () {
             const availableVersionsRaw = yield this.getAvailableVersions();
             const availableVersions = availableVersionsRaw.map(item => {
+                // The Azul Metadata API reports the JDK build number separately from
+                // java_version (e.g. java_version=[17,0,7], openjdk_build_number=7).
+                // Append it so the resulting semver retains the build (e.g. 17.0.7+7).
+                const javaVersion = item.openjdk_build_number != null
+                    ? [...item.java_version, item.openjdk_build_number]
+                    : item.java_version;
                 return {
-                    version: (0, util_1.convertVersionToSemver)(item.java_version),
+                    version: (0, util_1.convertVersionToSemver)(javaVersion),
                     url: item.download_url,
                     zuluVersion: (0, util_1.convertVersionToSemver)(item.distro_version)
                 };
diff --git a/src/distributions/zulu/installer.ts b/src/distributions/zulu/installer.ts
index 622c3d34..caf03910 100644
--- a/src/distributions/zulu/installer.ts
+++ b/src/distributions/zulu/installer.ts
@@ -30,8 +30,15 @@ export class ZuluDistribution extends JavaBase {
   ): Promise<JavaDownloadRelease> {
     const availableVersionsRaw = await this.getAvailableVersions();
     const availableVersions = availableVersionsRaw.map(item => {
+      // The Azul Metadata API reports the JDK build number separately from
+      // java_version (e.g. java_version=[17,0,7], openjdk_build_number=7).
+      // Append it so the resulting semver retains the build (e.g. 17.0.7+7).
+      const javaVersion =
+        item.openjdk_build_number != null
+          ? [...item.java_version, item.openjdk_build_number]
+          : item.java_version;
       return {
-        version: convertVersionToSemver(item.java_version),
+        version: convertVersionToSemver(javaVersion),
         url: item.download_url,
         zuluVersion: convertVersionToSemver(item.distro_version)
       };
diff --git a/src/distributions/zulu/models.ts b/src/distributions/zulu/models.ts
index 92808cd5..36d369e0 100644
--- a/src/distributions/zulu/models.ts
+++ b/src/distributions/zulu/models.ts
@@ -6,6 +6,7 @@ export interface IZuluVersions {
   download_url: string;
   java_version: Array<number>;
   distro_version: Array<number>;
+  openjdk_build_number: number;
   latest: boolean;
   availability_type: string;
 }