diff --git a/package-lock.json b/package-lock.json
index 5f86a2a93..b0e1e2f2f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -288,6 +288,7 @@
         "lodash.clonedeep": "4.5.0",
         "log4js": "0.6.35",
         "measured-core": "1.11.2",
+        "mime-types": "^2.1.27",
         "nodeify": "1.0.1",
         "npm": "6.14.8",
         "openapi-backend": "2.4.1",
diff --git a/src/package.json b/src/package.json
index f7341f834..d9c77cec1 100644
--- a/src/package.json
+++ b/src/package.json
@@ -52,6 +52,7 @@
     "lodash.clonedeep": "4.5.0",
     "log4js": "0.6.35",
     "measured-core": "1.11.2",
+    "mime-types": "^2.1.27",
     "nodeify": "1.0.1",
     "npm": "6.14.8",
     "openapi-backend": "2.4.1",