1 files changed, 1 insertions, 1 deletions
diff --git a/tools/node_modules/eslint/lib/cli-engine/lint-result-cache.js b/tools/node_modules/eslint/lib/cli-engine/lint-result-cache.js
index 3304d429de..e36eb74bad 100644
--- a/tools/node_modules/eslint/lib/cli-engine/lint-result-cache.js
+++ b/tools/node_modules/eslint/lib/cli-engine/lint-result-cache.js
@@ -36,7 +36,7 @@ const invalidCacheStrategyErrorMessage = `Cache strategy must be one of: ${valid
  */
 function isValidCacheStrategy(cacheStrategy) {
     return (
-        validCacheStrategies.indexOf(cacheStrategy) !== -1
+        validCacheStrategies.includes(cacheStrategy)
     );
 }