diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 6e93143ae9..0b9f249c68 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -53,7 +53,7 @@ Added
 
 * Begin introducing `pants <https://www.pantsbuild.org/docs>`_ to improve DX (Developer Experience)
   working on StackStorm, improve our security posture, and improve CI reliability thanks in part
-  to pants' use of PEX lockfiles. This is not a user-facing addition. #5713 #5724 #5726
+  to pants' use of PEX lockfiles. This is not a user-facing addition. #5713 #5724 #5726 #5725
   Contributed by @cognifloyd
 
 Changed
diff --git a/pants.toml b/pants.toml
index e3d92a5ba7..c4a2eba651 100644
--- a/pants.toml
+++ b/pants.toml
@@ -1,5 +1,14 @@
 [GLOBAL]
 pants_version = "2.13.0rc2"
+backend_packages = [
+  # python
+  "pants.backend.python",
+  "pants.backend.experimental.python", # activates twine `publish` support
+  "pants.backend.python.mixed_interpreter_constraints",
+
+  # shell
+  "pants.backend.shell",
+]
 
 [source]
 # recording each pack individually under root patterns is not great, but resolves these issues: