diff --git a/pkgs/development/python-modules/cert-chain-resolver/default.nix b/pkgs/development/python-modules/cert-chain-resolver/default.nix
index cdd26163d2fd..bba1dff0b28e 100644
--- a/pkgs/development/python-modules/cert-chain-resolver/default.nix
+++ b/pkgs/development/python-modules/cert-chain-resolver/default.nix
@@ -10,7 +10,7 @@
 
 buildPythonPackage rec {
   pname = "cert-chain-resolver";
-  version = "1.0.1";
+  version = "1.1.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -19,7 +19,7 @@ buildPythonPackage rec {
     owner = "rkoopmans";
     repo = "python-certificate-chain-resolver";
     rev = version;
-    hash = "sha256-NLTRx6J6pjs7lyschHN5KtgrnpQpEyvZ2zz0pSd5sc4=";
+    hash = "sha256-2itpu/Ap5GNnqAiw3Cp+8rndreWlwfPd+WwM99G7U2E=";
   };
 
   propagatedBuildInputs = [