diff --git a/pkgs/by-name/ce/cedar/package.nix b/pkgs/by-name/ce/cedar/package.nix
index 1764287a5932..e2a9b7ef3426 100644
--- a/pkgs/by-name/ce/cedar/package.nix
+++ b/pkgs/by-name/ce/cedar/package.nix
@@ -9,16 +9,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "cedar";
-  version = "4.5.0";
+  version = "4.5.1";
 
   src = fetchFromGitHub {
     owner = "cedar-policy";
     repo = "cedar";
     tag = "v${version}";
-    hash = "sha256-CkrrpaAS7CZk2eboGXXDPtpfil5d+4Cg4Ldkw/Zwr8c=";
+    hash = "sha256-f8d7KL1DzEfJqEJ5uwwOJCgePE/frOXIFcXuoybIp2U=";
   };
 
-  cargoHash = "sha256-OLTKAFTqjgw5Dix2B0bPzRYjP2EQLgCXjfiB3Reirok=";
+  cargoHash = "sha256-MK6Zcpf12mGzntEv632kQjH7YOx31QBCmSJHxjE3l1c=";
 
   passthru = {
     tests.version = testers.testVersion { package = cedar; };