diff --git a/pkgs/development/python-modules/lazy-object-proxy/default.nix b/pkgs/development/python-modules/lazy-object-proxy/default.nix
index f72e71fd4bd..430e43a129b 100644
--- a/pkgs/development/python-modules/lazy-object-proxy/default.nix
+++ b/pkgs/development/python-modules/lazy-object-proxy/default.nix
@@ -6,11 +6,11 @@
 
 buildPythonPackage rec {
   pname = "lazy-object-proxy";
-  version = "1.2.1";
+  version = "1.3.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "22ed751a2c63c6cf718674fd7461b1dfc45215bab4751ca32b6c9b8cb2734cb3";
+    sha256 = "eb91be369f945f10d3a49f5f9be8b3d0b93a4c2be8f8a5b83b0571b8123e0a7a";
   };
 
   buildInputs = [ pytest ];