diff --git a/pkgs/development/python-modules/objgraph/default.nix b/pkgs/development/python-modules/objgraph/default.nix
index 860f8c0051e..79c448b5cce 100644
--- a/pkgs/development/python-modules/objgraph/default.nix
+++ b/pkgs/development/python-modules/objgraph/default.nix
@@ -10,11 +10,11 @@
 
 buildPythonPackage rec {
   pname = "objgraph";
-  version = "3.4.1";
+  version = "3.5.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "bf29512d7f8b457b53fa0722ea59f516abb8abc59b78f97f0ef81394a0c615a7";
+    sha256 = "4752ca5bcc0e0512e41b8cc4d2780ac2fd3b3eabd03b7e950a5594c06203dfc4";
   };
 
   # Tests fail with PyPy.