diff --git a/pkgs/development/python-modules/posthog/default.nix b/pkgs/development/python-modules/posthog/default.nix
index a561e6c59f08..466e885bb0ea 100644
--- a/pkgs/development/python-modules/posthog/default.nix
+++ b/pkgs/development/python-modules/posthog/default.nix
@@ -20,14 +20,14 @@
 
 buildPythonPackage rec {
   pname = "posthog";
-  version = "6.5.0";
+  version = "6.6.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "PostHog";
     repo = "posthog-python";
     tag = "v${version}";
-    hash = "sha256-Y215wLsPOa6lzpZ5KTYwrPkjPbBrEerLbhsHWaxFZ7E=";
+    hash = "sha256-/rcE8XqYiyHvDzaolGX9D0Z6aPuXen71/resZdjyxzk=";
   };
 
   build-system = [ setuptools ];