diff --git a/package-lock.json b/package-lock.json
index 1a027d6..82d3b31 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1870,9 +1870,9 @@
       }
     },
     "mime": {
-      "version": "1.3.6",
-      "resolved": "https://registry.npmjs.org/mime/-/mime-1.3.6.tgz",
-      "integrity": "sha1-WR2E02U6awtKO5343lqoEI5y5eA="
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/mime/-/mime-2.3.1.tgz",
+      "integrity": "sha512-OEUllcVoydBHGN1z84yfQDimn58pZNNNXgZlHXSboxMlFvgI6MXSWpWKpFRra7H1HxpVhHTkrghfRW49k6yjeg=="
     },
     "mime-db": {
       "version": "1.35.0",
diff --git a/package.json b/package.json
index a0cfe89..f5aaa74 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "humanize-duration": "^3.12.1",
     "json5": "^1.0.1",
     "knex": "^0.14.2",
-    "mime": "^1.3.4",
+    "mime": "^2.3.1",
     "moment": "^2.21.0",
     "public-ip": "^2.0.1",
     "sqlite3": "^4.0.2",
diff --git a/src/modules/webserver.js b/src/modules/webserver.js
index da7b63f..fdad567 100644
--- a/src/modules/webserver.js
+++ b/src/modules/webserver.js
@@ -61,7 +61,7 @@ function serveAttachments(res, pathParts) {
 
     const filenameParts = desiredFilename.split('.');
     const ext = (filenameParts.length > 1 ? filenameParts[filenameParts.length - 1] : 'bin');
-    const fileMime = mime.lookup(ext);
+    const fileMime = mime.getType(ext);
 
     res.setHeader('Content-Type', fileMime);