diff --git a/pkgs/development/python-modules/cached-ipaddress/default.nix b/pkgs/development/python-modules/cached-ipaddress/default.nix
index 8cbd78573f83..820d3dfe2448 100644
--- a/pkgs/development/python-modules/cached-ipaddress/default.nix
+++ b/pkgs/development/python-modules/cached-ipaddress/default.nix
@@ -13,14 +13,14 @@
 
 buildPythonPackage rec {
   pname = "cached-ipaddress";
-  version = "1.0.1";
+  version = "1.1.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "bdraco";
     repo = "cached-ipaddress";
     tag = "v${version}";
-    hash = "sha256-/bq9RZcC6VDK5JxT1QcAJpWNmioNqOearYc34KsCvHs=";
+    hash = "sha256-VIIcScaZwd5BAidgG30edYsAQaFnqxEQX+F/t+HR278=";
   };
 
   build-system = [