diff --git a/package.json b/package.json
index 9fdef17..ae989df 100644
--- a/package.json
+++ b/package.json
@@ -26,9 +26,9 @@
   },
   "homepage": "https://github.com/alvarocastro/round#readme",
   "devDependencies": {
-    "ava": "^3.5.2",
-    "coveralls": "^3.0.11",
-    "nyc": "^15.0.0",
-    "xo": "^0.28.1"
+    "ava": "3.5.2",
+    "coveralls": "3.0.11",
+    "nyc": "15.0.0",
+    "xo": "0.28.1"
   }
 }