diff --git a/package-lock.json b/package-lock.json
index 8f93386..53f7945 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,6 +19,7 @@
         "7z-wasm": "^1.0.0-beta.5",
         "astro": "^1.0.0-beta.27",
         "axios": "^0.21.0",
+        "big-integer": "^1.6.51",
         "buffer": "^6.0.3",
         "can-autoplay": "^3.0.0",
         "chance": "^1.1.7",
diff --git a/package.json b/package.json
index 3d1ee80..92cc900 100644
--- a/package.json
+++ b/package.json
@@ -63,6 +63,7 @@
     "7z-wasm": "^1.0.0-beta.5",
     "astro": "^1.0.0-beta.27",
     "axios": "^0.21.0",
+    "big-integer": "^1.6.51",
     "buffer": "^6.0.3",
     "can-autoplay": "^3.0.0",
     "chance": "^1.1.7",