diff --git a/pkgs/tools/misc/addlicense/default.nix b/pkgs/tools/misc/addlicense/default.nix
index 7980185bca42..a01ae0de0834 100644
--- a/pkgs/tools/misc/addlicense/default.nix
+++ b/pkgs/tools/misc/addlicense/default.nix
@@ -5,13 +5,13 @@
 
 buildGoModule rec {
   pname = "addlicense";
-  version = "unstable-2021-04-22";
+  version = "1.1.0";
 
   src = fetchFromGitHub {
     owner = "google";
     repo = "addlicense";
-    rev = "13e73a7f8fcb5696256b6a7b7addabf1070ad4b9";
-    sha256 = "sha256-UiJaTWCBup/Ub9NZIvkb67TvcUllV/AmYAKVO4egRqc=";
+    rev = "v${version}";
+    sha256 = "sha256-Vi+U0b9tTJitStZr1wSotr82Y2gA4IjvHLAa+rwGH/g=";
   };
 
   vendorSha256 = "sha256-2mncc21ecpv17Xp8PA9GIodoaCxNBacbbya/shU8T9Y=";