diff --git a/package.json b/package.json
index ec7539b91fb716dfab32104444982b578f5bd6a0..a7be6ef466649a89ce50740d1f5a7eb5ea7597cc 100644
--- a/package.json
+++ b/package.json
@@ -22,6 +22,7 @@
     "pinia-plugin-persistedstate": "^3.2.1",
     "protobufjs": "^7.2.6",
     "v-viewer": "^3.0.10",
+    "viewerjs": "^1.11.6",
     "vue": "^3.4.21",
     "vue-router": "4",
     "vue3-markdown-it": "^1.0.10",