diff --git a/tsconfig.base.json b/tsconfig.base.json
index 6b5dda51..37e8954f 100644
--- a/tsconfig.base.json
+++ b/tsconfig.base.json
@@ -7,7 +7,6 @@
     "allowSyntheticDefaultImports": true,
     "esModuleInterop": true,
     "forceConsistentCasingInFileNames": true,
-    "types": [],
-    "isolatedModules": true
+    "types": []
   }
 }
diff --git a/tsconfig.esm.base.json b/tsconfig.esm.base.json
index e08b3956..5cd19654 100644
--- a/tsconfig.esm.base.json
+++ b/tsconfig.esm.base.json
@@ -7,6 +7,7 @@
     "allowSyntheticDefaultImports": true,
     "esModuleInterop": true,
     "forceConsistentCasingInFileNames": true,
-    "types": []
+    "types": [],
+    "isolatedModules": true
   }
 }