diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index d952d1b3aff..72e471dbd6a 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -57,6 +57,11 @@ jobs:
 
       - uses: actions/checkout@v3
 
+      - name: Sudo chmod to permit ghcup to update its cache
+        run: |
+          sudo mkdir -p /usr/local/.ghcup/cache
+          sudo chmod -R g+wr /usr/local/.ghcup/cache
+
       - uses: haskell/actions/setup@v2
         id: setup-haskell
         with: