diff --git a/pkgs/by-name/ce/cedar/package.nix b/pkgs/by-name/ce/cedar/package.nix
index 1ec71a7907f6..395de7266bc2 100644
--- a/pkgs/by-name/ce/cedar/package.nix
+++ b/pkgs/by-name/ce/cedar/package.nix
@@ -9,17 +9,17 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "cedar";
-  version = "4.4.1";
+  version = "4.5.0";
 
   src = fetchFromGitHub {
     owner = "cedar-policy";
     repo = "cedar";
     tag = "v${version}";
-    hash = "sha256-9lR1k8XoQDAbaknAGg5kFENX5cJY4l6JgGNyl1dbUXM=";
+    hash = "sha256-CkrrpaAS7CZk2eboGXXDPtpfil5d+4Cg4Ldkw/Zwr8c=";
   };
 
   useFetchCargoVendor = true;
-  cargoHash = "sha256-XFQo7/NRgRcxhzgdiXJ4iINU22s58Vp/kHLt7Jdr5/s=";
+  cargoHash = "sha256-OLTKAFTqjgw5Dix2B0bPzRYjP2EQLgCXjfiB3Reirok=";
 
   passthru = {
     tests.version = testers.testVersion { package = cedar; };