diff --git a/package.json b/package.json
index 8b1e35d..afdda00 100644
--- a/package.json
+++ b/package.json
@@ -13,11 +13,10 @@
   "license": "ISC",
   "dependencies": {
     "@marp-team/marp-cli": "^1.5.0",
+    "@marp-team/marp-core": "^3.0.0",
+    "markdown-it-footnote": "^3.0.2",
+    "markdown-it-highlight-lines": "^1.0.2",
     "foreman": "^3.0.1",
     "node-sass": "^7.0.0"
-  },
-  "devDependencies": {
-    "@marp-team/marp-core": "^3.0.0",
-    "markdown-it-footnote": "^3.0.2"
   }
 }