diff --git a/pkgs/applications/science/logic/elan/default.nix b/pkgs/applications/science/logic/elan/default.nix
index 95286443bd41..7600ecf7bacd 100644
--- a/pkgs/applications/science/logic/elan/default.nix
+++ b/pkgs/applications/science/logic/elan/default.nix
@@ -3,16 +3,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "elan";
-  version = "1.4.2";
+  version = "1.4.5";
 
   src = fetchFromGitHub {
     owner = "leanprover";
     repo = "elan";
     rev = "v${version}";
-    sha256 = "1aq06d66y622n0bbd57dx8s0ajz6cdv1vzaz25wvi4i62sg4x21x";
+    sha256 = "sha256-KCRKVVNC2tJZWgqdQ8NPUzJHPexhF58cuO8Iyx81UJo=";
   };
 
-  cargoSha256 = "sha256-RzeewQzsV5F5E0xwJF1MpzzQ8usyfQjzlDInOJqZdO8=";
+  cargoHash = "sha256-nFaDWDmDskZ0TKFG5KZk/vLn6ZzU3+mPD6y1wFxhLXg=";
 
   nativeBuildInputs = [ pkg-config makeWrapper ];