diff --git a/pkgs/development/python-modules/pg8000/default.nix b/pkgs/development/python-modules/pg8000/default.nix
index a0e8d08a2c7..5073b91f82e 100644
--- a/pkgs/development/python-modules/pg8000/default.nix
+++ b/pkgs/development/python-modules/pg8000/default.nix
@@ -7,11 +7,11 @@
 
 buildPythonPackage rec {
   pname = "pg8000";
-  version = "1.12.4";
+  version = "1.13.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "903a19158e9efda326908bb4b70a71d31f640b4326576774433ab11fd4e46f39";
+    sha256 = "2208c7aaffe8d61f5c4ccbefeb74ba033003899e64aee37c0eb98aadae8b9c6b";
   };
 
   propagatedBuildInputs = [ pytz six ];