diff --git a/pkgs/development/python-modules/pex/default.nix b/pkgs/development/python-modules/pex/default.nix
index 9eb72263302..78bb61d03cf 100644
--- a/pkgs/development/python-modules/pex/default.nix
+++ b/pkgs/development/python-modules/pex/default.nix
@@ -6,11 +6,11 @@
 
 buildPythonPackage rec {
   pname = "pex";
-  version = "2.1.15";
+  version = "2.1.20";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "e1092ae52cfdef41c22d98fa98f9225ac21936a7d096131777ca3a7940fe1b2d";
+    sha256 = "2f1cf9721aa5fce93b034d2a18922d34d6f5fb81236ab3a955706226b15658fd";
   };
 
   nativeBuildInputs = [ setuptools ];