diff --git a/pkgs/by-name/z3/z3/package.nix b/pkgs/by-name/z3/z3/package.nix
index 8dca36473ace..a173b7b31d5d 100644
--- a/pkgs/by-name/z3/z3/package.nix
+++ b/pkgs/by-name/z3/z3/package.nix
@@ -29,13 +29,13 @@ assert
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "z3";
-  version = "4.15.2";
+  version = "4.15.3";
 
   src = fetchFromGitHub {
     owner = "Z3Prover";
     repo = "z3";
     rev = "z3-${finalAttrs.version}";
-    hash = "sha256-hUGZdr0VPxZ0mEUpcck1AC0MpyZMjiMw/kK8WX7t0xU=";
+    hash = "sha256-Lw037Z0t0ySxkgMXkbjNW5CB4QQLRrrSEBsLJqiomZ4=";
   };
 
   patches = lib.optionals useCmakeBuild [