diff --git a/.azure-pipelines.yml b/.azure-pipelines.yml
index a043d2922b..5d9645451d 100644
--- a/.azure-pipelines.yml
+++ b/.azure-pipelines.yml
@@ -161,7 +161,7 @@ jobs:
           TEST_PY_BD: "sandbox"
         sandbox_clang:
           TEST_PY_BD: "sandbox"
-          OVERRIDE: "-O clang-7"
+          OVERRIDE: "-O clang-10"
         sandbox_spl:
           TEST_PY_BD: "sandbox_spl"
           TEST_PY_TEST_SPEC: "test_ofplatdata or test_handoff"
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 55bde3d86b..beaf9b9042 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -181,7 +181,7 @@ sandbox with clang test.py:
   tags: [ 'all' ]
   variables:
     TEST_PY_BD: "sandbox"
-    OVERRIDE: "-O clang-7"
+    OVERRIDE: "-O clang-10"
   <<: *buildman_and_testpy_dfn
 
 sandbox_spl test.py: