diff --git a/.github/workflows/buildcheck.yml b/.github/workflows/buildcheck.yml
index aa639255..43aa7995 100644
--- a/.github/workflows/buildcheck.yml
+++ b/.github/workflows/buildcheck.yml
@@ -7,6 +7,14 @@ on:
 
 jobs:
   buildtest:
+    continue-on-error: ${{ matrix.experimental }}
+    strategy:
+      matrix:
+        vss-tools-version: master
+        experimental: false
+        include:
+          - vss-tools-version: [master, 4.2.1]
+            experimental: true
     name: Build Test
     runs-on: ubuntu-latest
 
@@ -23,7 +31,7 @@ jobs:
           pip install pytest
           # idlc currently used both during python test and later in this script
           pip install cyclonedds
-          pip install git+https://github.com/COVESA/vss-tools@master
+          pip install git+https://github.com/COVESA/vss-tools@${{ matrix.vss-tools-version }}
           sudo apt install -y protobuf-compiler
           echo done!