diff --git a/src/static/plugins/showdown@1.9.1/package-lock.json b/src/static/plugins/showdown@1.9.1/package-lock.json
index cd889ce..873791f 100644
--- a/src/static/plugins/showdown@1.9.1/package-lock.json
+++ b/src/static/plugins/showdown@1.9.1/package-lock.json
@@ -2887,22 +2887,22 @@
     "handlebars": {
       "version": "4.0.6",
       "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.0.6.tgz",
-      "integrity": "sha1-LORISFBTf5yXqAJtU5m5NcTtTtc=",
+      "integrity": "sha512-czW7QLC0pHb9EE3w6H8AZGyX6TYxBJhLCW/cGpZmrsLrozhSoIlV7CEOeNG40sXClmDvvKa8ACuHaLYa1Kf62Q==",
       "dev": true,
       "requires": {
-        "async": "1.5.2",
-        "optimist": "0.6.1",
-        "source-map": "0.4.4",
-        "uglify-js": "2.7.5"
+        "async": "^1.4.0",
+        "optimist": "^0.6.1",
+        "source-map": "^0.4.4",
+        "uglify-js": "^2.6"
       },
       "dependencies": {
         "source-map": {
           "version": "0.4.4",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
-          "integrity": "sha1-66T12pwNyZneaAMti092FzZSA2s=",
+          "integrity": "sha512-Y8nIfcb1s/7DcobUz1yOO1GSp7gyL+D9zLHDehT7iRESqGSxjJ448Sg7rvfgsRJCnKLdSl11uGf0s9X80cH0/A==",
           "dev": true,
           "requires": {
-            "amdefine": "1.0.1"
+            "amdefine": ">=0.0.4"
           }
         }
       }