diff --git a/.github/workflows/validate-fsh.yml b/.github/workflows/validate-fsh.yml
index 74a9d34..1e8e1d3 100644
--- a/.github/workflows/validate-fsh.yml
+++ b/.github/workflows/validate-fsh.yml
@@ -28,6 +28,8 @@ jobs:
 
     - name: Install hl7.fhir.no.basis-2.2.0-snapshots in local cache
       run: |
+        echo "NPM install fhir r4 core 4.0.1 from package registry"
+        npm --registry https://packages.simplifier.net install hl7.fhir.r4.core@4.0.1
         echo "NPM install fhir no-basis220 from local tgz"
         npm install ${{ env.IG }}/snapshots/hl7.fhir.no.basis-2.2.0-snapshots.tgz
         echo "Create .fhir packages cache directory for no-basis"