diff --git a/lib/tsconfig.json b/lib/tsconfig.json
index 86f7dba..cb6a1b8 100644
--- a/lib/tsconfig.json
+++ b/lib/tsconfig.json
@@ -12,7 +12,6 @@
     "noUnusedParameters": true,
     "outDir": "dist/esm",
     "pretty": true,
-    "sourceMap": true,
     "strict": true,
     "target": "es2017"
   },