diff --git a/.github/workflows/pd-externals.yml b/.github/workflows/pd-externals.yml
index 2d83618..fe0439f 100644
--- a/.github/workflows/pd-externals.yml
+++ b/.github/workflows/pd-externals.yml
@@ -55,6 +55,10 @@ jobs:
         uses: msys2/setup-msys2@v2
         with:
           release: false
+          install: >-
+            make
+            unzip
+            mingw-w64-x86_64-gcc
       - name: Install Pd
         run: |
           wget -q -O Pd.zip http://msp.ucsd.edu/Software/pd-0.51-3.msw.zip
@@ -79,7 +83,9 @@ jobs:
           path: apf/examples/pure-data/build/*
 
   deken-package:
-    runs-on: ubuntu-latest
+    # Deken is not available on 22.04,
+    # see https://github.com/pure-data/deken/issues/260
+    runs-on: ubuntu-20.04
     needs: [linux, macos, windows]
     steps:
       - name: Clone Git repository