diff --git a/pkgs/development/php-packages/grumphp/default.nix b/pkgs/development/php-packages/grumphp/default.nix
index d9c42c328551..29db90bd5a7a 100644
--- a/pkgs/development/php-packages/grumphp/default.nix
+++ b/pkgs/development/php-packages/grumphp/default.nix
@@ -12,11 +12,11 @@ php.buildComposerProject2 (finalAttrs: {
   src = fetchFromGitHub {
     owner = "phpro";
     repo = "grumphp";
-    rev = "v${finalAttrs.version}";
+    tag = "v${finalAttrs.version}";
     hash = "sha256-g2V2clNI0+KzKAPStq1vJZ3gHpBV1EbduWBmzRnuzv8=";
   };
 
-  vendorHash = "sha256-wDxrLsBA8TMc6Fk+voeHlxQNfJaaef1ydg0ppuJgO2E=";
+  vendorHash = "sha256-lgXDxfBTCtGlrDzi+leeE8J8VIsaKpwyB1CUTUvdpMg=";
 
   doInstallCheck = true;
   nativeInstallCheckInputs = [ versionCheckHook ];