diff --git a/pkgs/by-name/ef/efmt/package.nix b/pkgs/by-name/ef/efmt/package.nix
index 6df33002e2e7..26c1a9407f9f 100644
--- a/pkgs/by-name/ef/efmt/package.nix
+++ b/pkgs/by-name/ef/efmt/package.nix
@@ -6,16 +6,16 @@
 
 rustPlatform.buildRustPackage (finalAttrs: {
   pname = "efmt";
-  version = "0.20.0";
+  version = "0.21.0";
 
   src = fetchFromGitHub {
     owner = "sile";
     repo = "efmt";
     rev = finalAttrs.version;
-    hash = "sha256-cRiYOJiBIRHm9s3EFhRNTvLXw66Svu1vc4ipWYKDo1s=";
+    hash = "sha256-Qk33fKOQmBnT0D3/VEF8txm0GIPLziISkqxGjn2gWdM=";
   };
 
-  cargoHash = "sha256-Wb8SNPsubhVyfIzcPjkqauforLmhNlfas4KwD/l40sI=";
+  cargoHash = "sha256-WW6vh/Efv1NweVNfgNDyRVM8cWOPYA2py5jEcL358dk=";
 
   meta = {
     description = "Erlang code formatter";