diff --git a/.github/workflows/CICD.yml b/.github/workflows/CICD.yml
index d096ff43c18..0372336a745 100644
--- a/.github/workflows/CICD.yml
+++ b/.github/workflows/CICD.yml
@@ -532,7 +532,7 @@ jobs:
         if [ $n_fails -gt 0 ] ; then echo "::warning ::${n_fails}+ test failures" ; fi
 
   test_freebsd:
-    runs-on: macos-latest
+    runs-on: macos-10.15
     name: Tests/FreeBSD test suite
     env:
       mem: 2048