diff --git a/pkgs/development/python-modules/wadler-lindig/default.nix b/pkgs/development/python-modules/wadler-lindig/default.nix
index 7011c0a9ef16..8946220eed50 100644
--- a/pkgs/development/python-modules/wadler-lindig/default.nix
+++ b/pkgs/development/python-modules/wadler-lindig/default.nix
@@ -13,14 +13,14 @@
 
 buildPythonPackage rec {
   pname = "wadler-lindig";
-  version = "0.1.3";
+  version = "0.1.4";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "patrick-kidger";
     repo = "wadler_lindig";
-    rev = "v${version}";
-    hash = "sha256-akb1x9UYbfEwnVS6ahpb42XnEl3y7kk3WkhwD8p7AA4=";
+    tag = "v${version}";
+    hash = "sha256-ykRyJ5kCxYb3jBb8/8ogGjpgXMcb/mvvvHaSy9fecxA=";
   };
 
   build-system = [