diff --git a/pkgs/development/python-modules/twilio/default.nix b/pkgs/development/python-modules/twilio/default.nix
index d7112e37c83f..2c204a84c446 100644
--- a/pkgs/development/python-modules/twilio/default.nix
+++ b/pkgs/development/python-modules/twilio/default.nix
@@ -21,7 +21,7 @@
 
 buildPythonPackage rec {
   pname = "twilio";
-  version = "9.6.3";
+  version = "9.6.4";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
@@ -30,7 +30,7 @@ buildPythonPackage rec {
     owner = "twilio";
     repo = "twilio-python";
     tag = version;
-    hash = "sha256-dgz46LzY93SCSMWjvkAQAOprGAKSHPhjyVCuOtFH5ns=";
+    hash = "sha256-tl4kCTpehILfX5Fvk2+GWL0Lm6btkmxSO3VHXEK1uXo=";
   };
 
   build-system = [ setuptools ];