diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index a63b0e9a..b7212fe2 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -20,6 +20,7 @@ jobs:
       image: openquantumsafe/ci-ubuntu-jammy:latest
     env:
       MAKE_PARAMS: "-j 18"
+      LIBOQS_BRANCH: "main"
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
diff --git a/.github/workflows/standalone.yml b/.github/workflows/standalone.yml
index fbcfb162..ee227f99 100644
--- a/.github/workflows/standalone.yml
+++ b/.github/workflows/standalone.yml
@@ -48,7 +48,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v2
       - name: Full build
-        run: ./scripts/fullbuild.sh
+        run: LIBOQS_BRANCH=main ./scripts/fullbuild.sh
       - name: Test
         run: ./scripts/runtests.sh -V
 
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 2ee0cced..384e376d 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -43,6 +43,7 @@ jobs:
         with:
           set-safe-directory: true
           repository: open-quantum-safe/liboqs
+          ref: main
           path: liboqs
       - name: Install cygwin
         uses: cygwin/cygwin-install-action@master
@@ -251,6 +252,7 @@ jobs:
           with:
             set-safe-directory: true
             repository: open-quantum-safe/liboqs
+            ref: main
             path: liboqs
         - uses: ilammy/msvc-dev-cmd@v1
           with: