diff --git a/.cirrus.tasks.yml b/.cirrus.tasks.yml
index e4e1bcfeb99..3b5b54df58f 100644
--- a/.cirrus.tasks.yml
+++ b/.cirrus.tasks.yml
@@ -138,6 +138,8 @@ task:
     CPPFLAGS: -DRELCACHE_FORCE_RELEASE -DCOPY_PARSE_PLAN_TREES -DWRITE_READ_PARSE_PLAN_TREES -DRAW_EXPRESSION_COVERAGE_TEST -DENFORCE_REGRESSION_TEST_NAME_RESTRICTIONS
     CFLAGS: -Og -ggdb
 
+    PG_TEST_PG_UPGRADE_MODE: --link
+
   <<: *freebsd_task_template
 
   depends_on: SanityCheck
@@ -431,6 +433,8 @@ task:
     CFLAGS: -Og -ggdb
     CXXFLAGS: -Og -ggdb
 
+    PG_TEST_PG_UPGRADE_MODE: --clone
+
   <<: *macos_task_template
 
   depends_on: SanityCheck