diff --git a/scripts/circleci/test_coverage.sh b/scripts/circleci/test_coverage.sh
index d486b398cea4a..c6730a50b0342 100755
--- a/scripts/circleci/test_coverage.sh
+++ b/scripts/circleci/test_coverage.sh
@@ -2,7 +2,7 @@
 
 set -e
 
-yarn test --coverage
+yarn test --coverage --runInBand
 if [ -z $CI_PULL_REQUEST ]; then
   cat ./coverage/lcov.info | ./node_modules/.bin/coveralls
 fi
diff --git a/scripts/circleci/test_entry_point.sh b/scripts/circleci/test_entry_point.sh
index 8bee1a331b20a..e9dc6fcae6fd4 100755
--- a/scripts/circleci/test_entry_point.sh
+++ b/scripts/circleci/test_entry_point.sh
@@ -9,7 +9,7 @@ if [ $((1 % CIRCLE_NODE_TOTAL)) -eq "$CIRCLE_NODE_INDEX" ]; then
 fi
 
 if [ $((2 % CIRCLE_NODE_TOTAL)) -eq "$CIRCLE_NODE_INDEX" ]; then
-  COMMANDS_TO_RUN+=('yarn test-prod')
+  COMMANDS_TO_RUN+=('yarn test-prod --runInBand')
 fi
 
 if [ $((3 % CIRCLE_NODE_TOTAL)) -eq "$CIRCLE_NODE_INDEX" ]; then
@@ -20,7 +20,7 @@ fi
 if [ $((0 % CIRCLE_NODE_TOTAL)) -eq "$CIRCLE_NODE_INDEX" ]; then
   COMMANDS_TO_RUN+=('node ./scripts/prettier/index')
   COMMANDS_TO_RUN+=('node ./scripts/tasks/flow')
-  COMMANDS_TO_RUN+=('yarn test')
+  COMMANDS_TO_RUN+=('yarn test --runInBand')
   COMMANDS_TO_RUN+=('./scripts/circleci/build.sh')
   COMMANDS_TO_RUN+=('./scripts/circleci/check_license.sh')
   COMMANDS_TO_RUN+=('./scripts/circleci/check_modules.sh')