diff --git a/bucket/z3.json b/bucket/z3.json
index 3d0d84ee70..a81a2613b9 100644
--- a/bucket/z3.json
+++ b/bucket/z3.json
@@ -1,18 +1,18 @@
 {
-    "version": "4.13.2",
+    "version": "4.13.3",
     "description": "Theorem prover from Microsoft Research.",
     "homepage": "https://github.com/Z3Prover/z3",
     "license": "MIT",
     "architecture": {
         "64bit": {
-            "url": "https://github.com/Z3Prover/z3/releases/download/z3-4.13.2/z3-4.13.2-x64-win.zip",
-            "hash": "fd8a4a6070c65bdced34b37d1ff278f83c3308fa83e8cc7bd961762ddd0ce0ac",
-            "extract_dir": "z3-4.13.2-x64-win"
+            "url": "https://github.com/Z3Prover/z3/releases/download/z3-4.13.3/z3-4.13.3-x64-win.zip",
+            "hash": "014e313f5aa414c48f36620a32eced705002fdc8c840ed8a1b51f186f0da0348",
+            "extract_dir": "z3-4.13.3-x64-win"
         },
         "32bit": {
-            "url": "https://github.com/Z3Prover/z3/releases/download/z3-4.13.2/z3-4.13.2-x86-win.zip",
-            "hash": "c502ac3353a0c06fe2ff6802880c065df876935de2725bf8b84d88c9dadf7481",
-            "extract_dir": "z3-4.13.2-x64-win"
+            "url": "https://github.com/Z3Prover/z3/releases/download/z3-4.13.3/z3-4.13.3-x86-win.zip",
+            "hash": "1161897f3a43ac61c0969e3c7ccb94d8d39ae7f66f889ce1f784a705404ca204",
+            "extract_dir": "z3-4.13.3-x64-win"
         }
     },
     "bin": "bin\\z3.exe",