diff --git a/pkgs/development/python-modules/pysmi-lextudio/default.nix b/pkgs/development/python-modules/pysmi-lextudio/default.nix
index e4ccdae68951..1ca9e1bd02c9 100644
--- a/pkgs/development/python-modules/pysmi-lextudio/default.nix
+++ b/pkgs/development/python-modules/pysmi-lextudio/default.nix
@@ -10,7 +10,7 @@
 
 buildPythonPackage rec {
   pname = "pysmi-lextudio";
-  version = "1.3.2";
+  version = "1.3.3";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
@@ -19,7 +19,7 @@ buildPythonPackage rec {
     owner = "lextudio";
     repo = "pysmi";
     rev = "refs/tags/v${version}";
-    hash = "sha256-3ai7Fb97B2HpG6IllEx/PNbJ3KQjwoN9Mn+jprMz+XY=";
+    hash = "sha256-GApjr7KUd7KkdxsbLTzFNdWWol7b/8udrY9q/lls2ro=";
   };
 
   nativeBuildInputs = [
@@ -42,7 +42,7 @@ buildPythonPackage rec {
   meta = with lib; {
     description = "SNMP MIB parser";
     homepage = "https://github.com/lextudio/pysmi";
-    changelog = "https://github.com/lextudio/pysmi/blob/${version}/CHANGES.rst";
+    changelog = "https://github.com/lextudio/pysmi/blob/v${version}/CHANGES.rst";
     license = licenses.bsd2;
     maintainers = with maintainers; [ fab ];
   };