diff --git a/package.json b/package.json
index ffd6e28..9f7d53e 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "prebuild": "rm -rf dist/"
   },
   "dependencies": {
-    "express-promise-router": "^3.0.3"
+    "express-promise-router": "^4.0.0"
   },
   "devDependencies": {
     "@types/express": "^4.17.3",
diff --git a/yarn.lock b/yarn.lock
index d52140a..b6a23f7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -150,12 +150,12 @@ etag@~1.8.1:
   resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
   integrity sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=
 
-express-promise-router@^3.0.3:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/express-promise-router/-/express-promise-router-3.0.3.tgz#5e6d22a5a3f013d71833172fe8d7ab780c3f6b70"
-  integrity sha1-Xm0ipaPwE9cYMxcv6NereAw/a3A=
+express-promise-router@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/express-promise-router/-/express-promise-router-4.0.0.tgz#a4ba0f23801639a2801ef0efb4e86a8fe331c23a"
+  integrity sha512-h5uYgI2RNLzZlG58kEENFoVAPSxv/XfJBysD2IMit5RPO5BxxUAKsTDLumNI84oIPtVoQZLrgtlfDBnW/e6Czw==
   dependencies:
-    is-promise "^2.1.0"
+    is-promise "^4.0.0"
     lodash.flattendeep "^4.0.0"
     methods "^1.0.0"
 
@@ -263,10 +263,10 @@ ipaddr.js@1.9.0:
   resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.9.0.tgz#37df74e430a0e47550fe54a2defe30d8acd95f65"
   integrity sha512-M4Sjn6N/+O6/IXSJseKqHoFc+5FdGJ22sXqnjTpdZweHK64MzEPAyQZyEU3R/KRv2GLoa7nNtg/C2Ev6m7z+eA==
 
-is-promise@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
-  integrity sha1-eaKp7OfwlugPNtKy87wWwf9L8/o=
+is-promise@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-4.0.0.tgz#42ff9f84206c1991d26debf520dd5c01042dd2f3"
+  integrity sha512-hvpoI6korhJMnej285dSg6nu1+e6uxs7zG3BYAm5byqDsgJNWwxzM6z6iZiAgQR4TJ30JmBTOwqZUw3WlyH3AQ==
 
 lodash.flattendeep@^4.0.0:
   version "4.4.0"