diff --git a/pkgs/development/tools/dt-schema/default.nix b/pkgs/development/tools/dt-schema/default.nix
index a5445c8e021..20e1ed136e2 100644
--- a/pkgs/development/tools/dt-schema/default.nix
+++ b/pkgs/development/tools/dt-schema/default.nix
@@ -11,11 +11,11 @@
 
 buildPythonPackage rec {
   pname = "dtschema";
-  version = "2021.10";
+  version = "2022.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "d09c94d13f46e6674ba11ff31220651ad1b02dae860f5a87905dfac6b8d768d9";
+    sha256 = "sha256-G5KzuaMbbkuLK+cNvzBld1UwvExS6ZGVW2e+GXQRFMU=";
   };
 
   nativeBuildInputs = [ setuptools-scm git ];