diff --git a/pkgs/applications/science/logic/z3/default.nix b/pkgs/applications/science/logic/z3/default.nix
index f36b26d9a398..9fe39c8cef89 100644
--- a/pkgs/applications/science/logic/z3/default.nix
+++ b/pkgs/applications/science/logic/z3/default.nix
@@ -80,6 +80,7 @@ let common = { version, sha256, patches ? [ ], tag ? "z3" }:
     meta = with lib; {
       description = "A high-performance theorem prover and SMT solver";
       homepage = "https://github.com/Z3Prover/z3";
+      changelog = "https://github.com/Z3Prover/z3/releases/tag/z3-${version}";
       license = licenses.mit;
       platforms = platforms.unix;
       maintainers = with maintainers; [ thoughtpolice ttuegel ];
@@ -88,12 +89,12 @@ let common = { version, sha256, patches ? [ ], tag ? "z3" }:
 in
 {
   z3_4_12 = common {
-    version = "4.12.1";
-    sha256 = "sha256-7cuUf29TMpX62PwO1ab3ZuzmzlcrRjTKB1CyXnYgYus=";
+    version = "4.12.2";
+    sha256 = "sha256-DTgpKEG/LtCGZDnicYvbxG//JMLv25VHn/NaF307JYA=";
   };
   z3_4_11 = common {
-    version = "4.11.0";
-    sha256 = "sha256-ItmtZHDhCeLAVtN7K80dqyAh20o7TM4xk2sTb9QgHvk=";
+    version = "4.11.2";
+    sha256 = "sha256-OO0wtCvSKwGxnKvu+AfXe4mEzv4nofa7A00BjX+KVjc=";
   };
   z3_4_8 = common {
     version = "4.8.17";