diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 74744b9..9455007
--- a/package.json
+++ b/package.json
@@ -71,6 +71,6 @@
         "d3": "6.x.x",
         "mithril": "^2.0.4",
         "hsutil": "3.x.x",
-        "showdown": "^1.9.1"
+        "showdown": "^2.0.0"
     }
 }