diff --git a/pkgs/development/python-modules/qcs-api-client/default.nix b/pkgs/development/python-modules/qcs-api-client/default.nix
index 8de6ba9e6dc5..e140c949b631 100644
--- a/pkgs/development/python-modules/qcs-api-client/default.nix
+++ b/pkgs/development/python-modules/qcs-api-client/default.nix
@@ -22,7 +22,7 @@
 
 buildPythonPackage rec {
   pname = "qcs-api-client";
-  version = "0.21.5";
+  version = "0.21.6";
   format = "pyproject";
 
   disabled = pythonOlder "3.7";
@@ -31,7 +31,7 @@ buildPythonPackage rec {
     owner = "rigetti";
     repo = "qcs-api-client-python";
     rev = "refs/tags/v${version}";
-    hash = "sha256-lw6jswIaqDFExz/hjIrpZf4BC757l83MeCfOyZaTbfg=";
+    hash = "sha256-1vXqwir3lAM+m/HGHWuXl20muAOasEWo1H0RjUCShTM=";
   };
 
   patches = [