diff --git a/pkgs/servers/sql/postgresql/ext/plr.nix b/pkgs/servers/sql/postgresql/ext/plr.nix
index 4c05288204dd..68faa58b2e83 100644
--- a/pkgs/servers/sql/postgresql/ext/plr.nix
+++ b/pkgs/servers/sql/postgresql/ext/plr.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "plr";
-  version = "8.4.4";
+  version = "8.4.5";
 
   src = fetchFromGitHub {
     owner = "postgres-plr";
     repo = "plr";
     rev = "REL${builtins.replaceStrings ["."] ["_"] version}";
-    sha256 = "15dygf8klx2a4kzpmc1qnch629gcaa43ba1p3cqk9r1db4ima24k";
+    sha256 = "sha256-G/V3I1JI6dWto/hK6lfOTBYEvbmkovvnvk2TwSQq4no=";
   };
 
   nativeBuildInputs = [ pkg-config ];