diff --git a/pkgs/development/python-modules/inform/default.nix b/pkgs/development/python-modules/inform/default.nix
index 57340099310f..d69941e15a85 100644
--- a/pkgs/development/python-modules/inform/default.nix
+++ b/pkgs/development/python-modules/inform/default.nix
@@ -13,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "inform";
-  version = "1.32";
+  version = "1.33";
   format = "pyproject";
 
   disabled = pythonOlder "3.7";
@@ -21,8 +21,8 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "KenKundert";
     repo = "inform";
-    rev = "refs/tags/v${version}";
-    hash = "sha256-RWcplWgGaIoiOZ28oPU4LtXQhwaTImc4bGHokHM5Kpg=";
+    tag = "v${version}";
+    hash = "sha256-YX+YT3pocauIAsxsfIM+TchiXYMGYVwiE84NnXoZDqQ=";
   };
 
   nativeBuildInputs = [ flit-core ];