diff --git a/node_modules/irregular-plurals/package.json b/node_modules/irregular-plurals/package.json
index cf9707d526..9c4e947636 100644
--- a/node_modules/irregular-plurals/package.json
+++ b/node_modules/irregular-plurals/package.json
@@ -34,9 +34,9 @@
     "nouns"
   ],
   "devDependencies": {
-    "ava": "^1.4.1",
-    "tsd": "^0.7.2",
-    "xo": "^0.24.0"
+    "ava": "^2.0.0",
+    "tsd": "^0.12.0",
+    "xo": "^0.42.0"
   },
   "tsd": {
     "compilerOptions": {