diff --git a/pkgs/by-name/bi/bird2/package.nix b/pkgs/by-name/bi/bird2/package.nix
index b4ae44f954a0..0ab5f5eb73fb 100644
--- a/pkgs/by-name/bi/bird2/package.nix
+++ b/pkgs/by-name/bi/bird2/package.nix
@@ -12,14 +12,14 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "bird";
-  version = "2.18";
+  version = "2.18.1";
 
   src = fetchFromGitLab {
     domain = "gitlab.nic.cz";
     owner = "labs";
     repo = "bird";
-    rev = "v${finalAttrs.version}";
-    hash = "sha256-Kta8zzM/EYC3Mz3mLptaJ+pFgs1Hi7MBsWjwkR4hwL8=";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-tYICTipTzugtb7kv/zwsChM8v+zJ2TVsotEkJDcZCto=";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/by-name/bi/bird3/package.nix b/pkgs/by-name/bi/bird3/package.nix
index 182439cd6846..acbe1d3deb9b 100644
--- a/pkgs/by-name/bi/bird3/package.nix
+++ b/pkgs/by-name/bi/bird3/package.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation (finalAttrs: {
     domain = "gitlab.nic.cz";
     owner = "labs";
     repo = "bird";
-    rev = "v${finalAttrs.version}";
+    tag = "v${finalAttrs.version}";
     hash = "sha256-FkrVrjT4Q9zLeauP2GOX38a7a4q7h2aQbEe/kmfKB3A=";
   };