diff --git a/server/package.json b/server/package.json
index 3656a75..9329ea3 100644
--- a/server/package.json
+++ b/server/package.json
@@ -20,7 +20,7 @@
   },
   "devDependencies": {
     "@sourcegraph/tsconfig": "^4.0.1",
-    "@types/express": "^4.17.11",
+    "@types/express": "^5.0.0",
     "@types/humps": "^2.0.0",
     "@types/node": "^14.14.20",
     "@types/stream-to-array": "^2.3.0",
diff --git a/server/yarn.lock b/server/yarn.lock
index 96ff405..b4563e1 100644
--- a/server/yarn.lock
+++ b/server/yarn.lock
@@ -44,22 +44,23 @@
   dependencies:
     "@types/node" "*"
 
-"@types/express-serve-static-core@^4.17.18":
-  version "4.17.18"
-  resolved "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.17.18.tgz#8371e260f40e0e1ca0c116a9afcd9426fa094c40"
-  integrity sha512-m4JTwx5RUBNZvky/JJ8swEJPKFd8si08pPF2PfizYjGZOKr/svUWPcoUmLow6MmPzhasphB7gSTINY67xn3JNA==
+"@types/express-serve-static-core@^5.0.0":
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/@types/express-serve-static-core/-/express-serve-static-core-5.0.0.tgz#91f06cda1049e8f17eeab364798ed79c97488a1c"
+  integrity sha512-AbXMTZGt40T+KON9/Fdxx0B2WK5hsgxcfXJLr5bFpZ7b4JCex2WyQPTEKdXqfHiY5nKKBScZ7yCoO6Pvgxfvnw==
   dependencies:
     "@types/node" "*"
     "@types/qs" "*"
     "@types/range-parser" "*"
+    "@types/send" "*"
 
-"@types/express@^4.17.11":
-  version "4.17.11"
-  resolved "https://registry.npmjs.org/@types/express/-/express-4.17.11.tgz#debe3caa6f8e5fcda96b47bd54e2f40c4ee59545"
-  integrity sha512-no+R6rW60JEc59977wIxreQVsIEOAYwgCqldrA/vkpCnbD7MqTefO97lmoBe4WE0F156bC4uLSP1XHDOySnChg==
+"@types/express@^5.0.0":
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/@types/express/-/express-5.0.0.tgz#13a7d1f75295e90d19ed6e74cab3678488eaa96c"
+  integrity sha512-DvZriSMehGHL1ZNLzi6MidnsDhUZM/x2pRdDIKdwbUNqqwHxMlRdkxtn6/EPKyqKpHqTl/4nRZsRNLpZxZRpPQ==
   dependencies:
     "@types/body-parser" "*"
-    "@types/express-serve-static-core" "^4.17.18"
+    "@types/express-serve-static-core" "^5.0.0"
     "@types/qs" "*"
     "@types/serve-static" "*"
 
@@ -114,6 +115,14 @@
   dependencies:
     "@types/node" "*"
 
+"@types/send@*":
+  version "0.17.4"
+  resolved "https://registry.yarnpkg.com/@types/send/-/send-0.17.4.tgz#6619cd24e7270793702e4e6a4b958a9010cfc57a"
+  integrity sha512-x2EM6TJOybec7c52BX0ZspPodMsQUd5L6PRwOunVyVUhXiBSKf3AezDL8Dgvgt5o0UfKNfuA0eMLr2wLT4AiBA==
+  dependencies:
+    "@types/mime" "^1"
+    "@types/node" "*"
+
 "@types/serve-static@*":
   version "1.13.9"
   resolved "https://registry.npmjs.org/@types/serve-static/-/serve-static-1.13.9.tgz#aacf28a85a05ee29a11fb7c3ead935ac56f33e4e"
@@ -411,7 +420,7 @@ http-cache-semantics@^4.0.0:
   resolved "https://registry.npmjs.org/http-cache-semantics/-/http-cache-semantics-4.1.0.tgz#49e91c5cbf36c9b94bcfcd71c23d5249ec74e390"
   integrity sha512-carPklcUh7ROWRK7Cv27RPtdhYhUsela/ue5/jKzjegVvXDqM2ILE9Q2BGn9JZJh1g87cp56su/FgQSzcWS8cQ==
 
-http-errors@1.7.2:
+http-errors@1.7.2, http-errors@~1.7.2:
   version "1.7.2"
   resolved "https://registry.npmjs.org/http-errors/-/http-errors-1.7.2.tgz#4f5029cf13239f31036e5b2e55292bcfbcc85c8f"
   integrity sha512-uUQBt3H/cSIVfch6i1EuPNy/YsRSOUBXTVfZ+yR7Zjez3qjBz6i9+i4zjNaoqcoFVI4lQJ5plg63TvGfRSDCRg==
@@ -422,17 +431,6 @@ http-errors@1.7.2:
     statuses ">= 1.5.0 < 2"
     toidentifier "1.0.0"
 
-http-errors@~1.7.2:
-  version "1.7.3"
-  resolved "https://registry.npmjs.org/http-errors/-/http-errors-1.7.3.tgz#6c619e4f9c60308c38519498c14fbb10aacebb06"
-  integrity sha512-ZTTX0MWrsQ2ZAhA1cejAwDLycFsd7I7nVtnkT3Ol0aqodaKW+0CTZDQ1uBv5whptCnc8e8HeRRJxRs0kmm/Qfw==
-  dependencies:
-    depd "~1.1.2"
-    inherits "2.0.4"
-    setprototypeof "1.1.1"
-    statuses ">= 1.5.0 < 2"
-    toidentifier "1.0.0"
-
 http2-wrapper@^1.0.0-beta.5.2:
   version "1.0.0-beta.5.2"
   resolved "https://registry.npmjs.org/http2-wrapper/-/http2-wrapper-1.0.0-beta.5.2.tgz#8b923deb90144aea65cf834b016a340fc98556f3"
@@ -458,11 +456,6 @@ inherits@2.0.3:
   resolved "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
   integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
 
-inherits@2.0.4:
-  version "2.0.4"
-  resolved "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
-  integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
-
 ipaddr.js@1.9.1:
   version "1.9.1"
   resolved "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz#bff38543eeb8984825079ff3a2a8e6cbd46781b3"