diff --git a/.eslintrc.json b/.eslintrc.json
index 9279c61b90..84a7cc4bfa 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -181,7 +181,7 @@
         ],
         "@typescript-eslint/type-annotation-spacing": "error",
         "@typescript-eslint/unified-signatures": "error",
-        "@typescript-eslint/ban-types": "warn",  // todo: deal with {} type issues & re-enable
+        "@typescript-eslint/ban-types": "error",
         "@typescript-eslint/no-floating-promises": "warn",
         "@typescript-eslint/no-misused-promises": "warn",
         "@typescript-eslint/restrict-plus-operands": "warn",