diff --git a/package.json b/package.json
index ca92b7e..56fcacf 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "@semantic-release/release-notes-generator": "9.0.3",
     "@types/chai": "4.3.3",
     "@types/cors": "2.8.13",
-    "@types/express": "4.17.15",
+    "@types/express": "4.17.21",
     "@types/mocha": "8.2.3",
     "@types/node-fetch": "2.6.2",
     "@types/underscore": "1.11.4",
diff --git a/yarn.lock b/yarn.lock
index acc53d3..57be917 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -855,22 +855,23 @@
   dependencies:
     "@types/node" "*"
 
-"@types/express-serve-static-core@^4.17.31":
-  version "4.17.32"
-  resolved "https://registry.yarnpkg.com/@types/express-serve-static-core/-/express-serve-static-core-4.17.32.tgz#93dda387f5516af616d8d3f05f2c4c79d81e1b82"
-  integrity sha512-aI5h/VOkxOF2Z1saPy0Zsxs5avets/iaiAJYznQFm5By/pamU31xWKL//epiF4OfUA2qTOc9PV6tCUjhO8wlZA==
+"@types/express-serve-static-core@^4.17.33":
+  version "4.17.41"
+  resolved "https://registry.yarnpkg.com/@types/express-serve-static-core/-/express-serve-static-core-4.17.41.tgz#5077defa630c2e8d28aa9ffc2c01c157c305bef6"
+  integrity sha512-OaJ7XLaelTgrvlZD8/aa0vvvxZdUmlCn6MtWeB7TkiKW70BQLc9XEPpDLPdbo52ZhXUCrznlWdCHWxJWtdyajA==
   dependencies:
     "@types/node" "*"
     "@types/qs" "*"
     "@types/range-parser" "*"
+    "@types/send" "*"
 
-"@types/express@4.17.15":
-  version "4.17.15"
-  resolved "https://registry.yarnpkg.com/@types/express/-/express-4.17.15.tgz#9290e983ec8b054b65a5abccb610411953d417ff"
-  integrity sha512-Yv0k4bXGOH+8a+7bELd2PqHQsuiANB+A8a4gnQrkRWzrkKlb6KHaVvyXhqs04sVW/OWlbPyYxRgYlIXLfrufMQ==
+"@types/express@4.17.21":
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/@types/express/-/express-4.17.21.tgz#c26d4a151e60efe0084b23dc3369ebc631ed192d"
+  integrity sha512-ejlPM315qwLpaQlQDTjPdsUFSc6ZsP4AN6AlWnogPjQ7CVi7PYF3YVz+CY3jE2pwYf7E/7HlDAN0rV2GxTG0HQ==
   dependencies:
     "@types/body-parser" "*"
-    "@types/express-serve-static-core" "^4.17.31"
+    "@types/express-serve-static-core" "^4.17.33"
     "@types/qs" "*"
     "@types/serve-static" "*"
 
@@ -897,6 +898,11 @@
   resolved "https://registry.yarnpkg.com/@types/mime/-/mime-3.0.1.tgz#5f8f2bca0a5863cb69bc0b0acd88c96cb1d4ae10"
   integrity sha512-Y4XFY5VJAuw0FgAqPNd6NNoV44jbq9Bz2L7Rh/J6jLTiHBSBJa9fxqQIvkIld4GsoDOcCbvzOUAbLPsSKKg+uA==
 
+"@types/mime@^1":
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/@types/mime/-/mime-1.3.4.tgz#a4ed836e069491414bab92c31fdea9e557aca0d9"
+  integrity sha512-1Gjee59G25MrQGk8bsNvC6fxNiRgUlGn2wlhGf95a59DrprnnHk80FIMMFG9XHMdrfsuA119ht06QPDXA1Z7tw==
+
 "@types/minimatch@*":
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-5.1.2.tgz#07508b45797cb81ec3f273011b054cd0755eddca"
@@ -950,6 +956,14 @@
   resolved "https://registry.yarnpkg.com/@types/retry/-/retry-0.12.0.tgz#2b35eccfcee7d38cd72ad99232fbd58bffb3c84d"
   integrity sha512-wWKOClTTiizcZhXnPY4wikVAwmdYHp8q6DmC+EJUzAMsycb7HB32Kh9RN4+0gExjmPmZSAQjgURXIGATPegAvA==
 
+"@types/send@*":
+  version "0.17.3"
+  resolved "https://registry.yarnpkg.com/@types/send/-/send-0.17.3.tgz#81b2ea5a3a18aad357405af2d643ccbe5a09020b"
+  integrity sha512-/7fKxvKUoETxjFUsuFlPB9YndePpxxRAOfGC/yJdc9kTjTeP5kRCTzfnE8kPUKCeyiyIZu0YQ76s50hCedI1ug==
+  dependencies:
+    "@types/mime" "^1"
+    "@types/node" "*"
+
 "@types/serve-static@*":
   version "1.15.0"
   resolved "https://registry.yarnpkg.com/@types/serve-static/-/serve-static-1.15.0.tgz#c7930ff61afb334e121a9da780aac0d9b8f34155"