diff --git a/.changeset/serious-badgers-build.md b/.changeset/serious-badgers-build.md
new file mode 100644
index 00000000000..5e5cbfe97c5
--- /dev/null
+++ b/.changeset/serious-badgers-build.md
@@ -0,0 +1,5 @@
+---
+'@astrojs/starlight': patch
+---
+
+Moves `@types/js-yaml` package to non-dev dependencies
diff --git a/packages/starlight/package.json b/packages/starlight/package.json
index 7ef3027aa98..47849c1b0fa 100644
--- a/packages/starlight/package.json
+++ b/packages/starlight/package.json
@@ -181,7 +181,6 @@
   "devDependencies": {
     "@astrojs/markdown-remark": "^5.3.0",
     "@playwright/test": "^1.45.0",
-    "@types/js-yaml": "^4.0.9",
     "@types/node": "^18.16.19",
     "@vitest/coverage-v8": "^1.6.0",
     "astro": "^4.16.10",
@@ -193,6 +192,7 @@
     "@astrojs/sitemap": "^3.1.6",
     "@pagefind/default-ui": "^1.0.3",
     "@types/hast": "^3.0.4",
+    "@types/js-yaml": "^4.0.9",
     "@types/mdast": "^4.0.4",
     "astro-expressive-code": "^0.38.3",
     "bcp-47": "^2.1.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 45dc525f10b..dc246bdffda 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -176,6 +176,9 @@ importers:
       '@types/hast':
         specifier: ^3.0.4
         version: 3.0.4
+      '@types/js-yaml':
+        specifier: ^4.0.9
+        version: 4.0.9
       '@types/mdast':
         specifier: ^4.0.4
         version: 4.0.4
@@ -240,9 +243,6 @@ importers:
       '@playwright/test':
         specifier: ^1.45.0
         version: 1.45.0
-      '@types/js-yaml':
-        specifier: ^4.0.9
-        version: 4.0.9
       '@types/node':
         specifier: ^18.16.19
         version: 18.16.19
@@ -1983,7 +1983,7 @@ packages:
 
   /@types/js-yaml@4.0.9:
     resolution: {integrity: sha512-k4MGaQl5TGo/iipqb2UDG2UwjXziSWkh0uysQelTlJpX1qGlpUZYm8PnO4DxG1qBomtJUdYJ6qR6xdIah10JLg==}
-    dev: true
+    dev: false
 
   /@types/junit-report-builder@3.0.2:
     resolution: {integrity: sha512-R5M+SYhMbwBeQcNXYWNCZkl09vkVfAtcPIaCGdzIkkbeaTrVbGQ7HVgi4s+EmM/M1K4ZuWQH0jGcvMvNePfxYA==}