diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 969368a4abc3385a6fd69cdd9a635c072a2ff47a..7f6c6e1ca606930b2e489bfc2f592991fa43a9de 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -50,7 +50,6 @@ include:
 ################
 variables:
   # Broaden test coverage.
-  OPT_IN_TEST_PREVIOUS_MINOR: 1
   OPT_IN_TEST_NEXT_MINOR: 1