diff --git a/pkgs/development/libraries/proj/default.nix b/pkgs/development/libraries/proj/default.nix
index 217399deb1c3..f2833cedc805 100644
--- a/pkgs/development/libraries/proj/default.nix
+++ b/pkgs/development/libraries/proj/default.nix
@@ -16,13 +16,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "proj";
-  version = "9.5.0";
+  version = "9.5.1";
 
   src = fetchFromGitHub {
     owner = "OSGeo";
     repo = "PROJ";
     rev = finalAttrs.version;
-    hash = "sha256-j7Bvv8F9wxrcQlquRa7Pdj5HTUJhwo8Wc1/JbULkUhM=";
+    hash = "sha256-gKfsuznAhq29sOw78gpQ7TNZ6xCgmDBad3TcqFzoWVc=";
   };
 
   patches = [