diff --git a/pkgs/development/python-modules/bytecode/default.nix b/pkgs/development/python-modules/bytecode/default.nix
index 75d4f38b2c3d..648ec29520bf 100644
--- a/pkgs/development/python-modules/bytecode/default.nix
+++ b/pkgs/development/python-modules/bytecode/default.nix
@@ -7,14 +7,14 @@
 
 buildPythonPackage rec {
   pname = "bytecode";
-  version = "0.12.0";
+  version = "0.13.0";
   disabled = pythonOlder "3.6";
 
   src = fetchFromGitHub {
     owner = "vstinner";
     repo = pname;
     rev = version;
-    sha256 = "sha256-CEfDoJ+JlnxLLVnSxv7bEN891tmwG9zAvtT8GNvp8JU=";
+    sha256 = "sha256-aY19qMYW7KziiXVY3lxdnHk7OCAJaNh+aTvlQyJWmDw=";
   };
 
   checkInputs = [