diff --git a/.eslintrc.yaml b/.eslintrc.yaml
index 587da2fcdc..1d2a4b75e7 100644
--- a/.eslintrc.yaml
+++ b/.eslintrc.yaml
@@ -4,9 +4,20 @@ env:
   browser: true
 
 rules:
-  # Strict Mode
-  # http://eslint.org/docs/rules/#strict-mode
-  strict: [error, global]
+  # Possible Errors
+  # http://eslint.org/docs/rules/#possible-errors
+  for-direction: error
+  no-debugger: error
+  no-dupe-args: error
+  no-dupe-keys: error
+  no-duplicate-case: error
+  no-empty-character-class: error
+  no-ex-assign: error
+  no-extra-semi: error
+  no-func-assign: error
+  no-invalid-regexp: error
+  no-irregular-whitespace: error
+  no-obj-calls: error
 
   # Stylistic Issues
   # http://eslint.org/docs/rules/#stylistic-issues