diff --git a/.circleci/config.yml b/.circleci/config.yml
index 412ad857589..6b93027a96b 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -732,6 +732,13 @@ jobs:
             rm -rf packages/rn-tester/Pods
             cd packages/rn-tester && bundle exec pod install
 
+      # The macOS machine can run out of storage if Hermes is enabled and built from source.
+      # Since this job does not use the iOS Simulator, deleting it provides a quick way to
+      # free up space.
+      - run:
+          name: Delete iOS Simulators
+          command: sudo rm -rf /Library/Developer/CoreSimulator/Profiles/Runtimes/
+
       - run:
           name: Build RNTester
           command: |