diff --git a/overrides/build-systems.json b/overrides/build-systems.json
index d99b531..60235a0 100644
--- a/overrides/build-systems.json
+++ b/overrides/build-systems.json
@@ -10707,6 +10707,9 @@
   "panflute": [
     "setuptools"
   ],
+  "pao": [
+    "setuptools"
+  ],
   "papermill": [
     "setuptools"
   ],
diff --git a/overrides/default.nix b/overrides/default.nix
index 742ae20..e84c742 100644
--- a/overrides/default.nix
+++ b/overrides/default.nix
@@ -1285,6 +1285,14 @@ lib.composeManyExtensions [
             buildInputs = (old.buildInputs or [ ]) ++ [ self.setuptools self.setuptools-scm self.setuptools-scm-git-archive ];
           });
 
+      munch = super.munch.overridePythonAttrs (
+        old: {
+          # Latest version of pypi imports pkg_resources at runtime, so setuptools is needed at runtime. :(
+          # They fixed this last year but never released a new version.
+          propagatedBuildInputs = (old.propagatedBuildInputs or [ ]) ++ [ self.setuptools ];
+        }
+      );
+
       mpi4py = super.mpi4py.overridePythonAttrs (
         old:
         let
@@ -1607,6 +1615,10 @@ lib.composeManyExtensions [
         '';
       });
 
+      pao = super.pao.overridePythonAttrs (old: {
+        propagatedBuildInputs = old.propagatedBuildInputs or [ ] ++ [ self.pyutilib ];
+      });
+
       paramiko = super.paramiko.overridePythonAttrs (old: {
         doCheck = false; # requires networking
       });