diff --git a/src/shared/config/config.loader.ts b/src/shared/config/config.loader.ts
index d471bdc22..5fd3025b6 100644
--- a/src/shared/config/config.loader.ts
+++ b/src/shared/config/config.loader.ts
@@ -35,7 +35,7 @@ export function loadConfigFiles(): JsonConfig {
         merged = merge(json, env);
     }
 
-    const mergedConfig: JsonConfig = plainToInstance(JsonConfig, merged, { enableImplicitConversion: true });
+    const mergedConfig: JsonConfig = plainToInstance(JsonConfig, merged, { enableImplicitConversion: false });
 
     const errors: ValidationError[] = validateSync(mergedConfig, {
         skipMissingProperties: false,