diff --git a/package.json b/package.json
index 3885cb2..bb1c2a0 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
   },
   "license": "MIT",
   "scripts": {
-    "dev": "ELEVENTY_ENV=development npx @11ty/eleventy --serve --incremental",
+    "dev": "cross-env ELEVENTY_ENV=development npx @11ty/eleventy --serve --incremental",
     "test": "npx jest",
     "test:watch": "npx jest --watch"
   },
@@ -39,6 +39,7 @@
   },
   "devDependencies": {
     "@11ty/eleventy": "^1.0.2",
+    "cross-env": "^7.0.3",
     "eslint": "^8.26.0",
     "eslint-config-prettier": "^8.5.0",
     "eslint-plugin-prettier": "^4.2.1",
diff --git a/yarn.lock b/yarn.lock
index e30cd2b..a7b8a87 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1507,7 +1507,14 @@ cosmiconfig@^7.0.0:
     path-type "^4.0.0"
     yaml "^1.10.0"
 
-cross-spawn@^7.0.2, cross-spawn@^7.0.3:
+cross-env@^7.0.3:
+  version "7.0.3"
+  resolved "https://registry.yarnpkg.com/cross-env/-/cross-env-7.0.3.tgz#865264b29677dc015ba8418918965dd232fc54cf"
+  integrity sha512-+/HKd6EgcQCJGh2PSjZuUitQBQynKor4wrFbRg4DtAgS1aWO+gU52xpH7M9ScGgXSYmAVS9bIJ8EzuaGw0oNAw==
+  dependencies:
+    cross-spawn "^7.0.1"
+
+cross-spawn@^7.0.1, cross-spawn@^7.0.2, cross-spawn@^7.0.3:
   version "7.0.3"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-7.0.3.tgz#f73a85b9d5d41d045551c177e2882d4ac85728a6"
   integrity sha512-iRDPJKUPVEND7dHPO8rkbOnPpyDygcDFtWjpeWNCgy8WP2rXcxXL8TskReQl6OrB2G7+UJrags1q15Fudc7G6w==