diff --git a/pkgs/development/python-modules/pyrsistent/default.nix b/pkgs/development/python-modules/pyrsistent/default.nix
index ceb0d718a403..e916c907e4f1 100644
--- a/pkgs/development/python-modules/pyrsistent/default.nix
+++ b/pkgs/development/python-modules/pyrsistent/default.nix
@@ -9,11 +9,11 @@
 
 buildPythonPackage rec {
   pname = "pyrsistent";
-  version = "0.14.6";
+  version = "0.14.9";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "5a31f6b093da3401fefdeb53a0980e3145bb9d2bf852b579cc7b39c7f0016c87";
+    sha256 = "0xwaqjjn665wd1rllqzndmlc8yzfw2wxakpfwlh6ir6kgbajff2s";
   };
 
   propagatedBuildInputs = [ six ];