diff --git a/package.json b/package.json
index 909c53b..c924160 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "@koa/cors": "^3.1.0",
     "axios": "^0.21.1",
     "cls-hooked": "^4.2.2",
-    "convict": "^6.0.0",
+    "convict": "^6.2.4",
     "ip6addr": "^0.2.3",
     "jsonwebtoken": "^8.5.1",
     "koa": "^2.6.2",
diff --git a/yarn.lock b/yarn.lock
index 8ff0ff8..646dd24 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -619,11 +619,6 @@ callsites@^3.0.0:
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-3.1.0.tgz#b3630abd8943432f54b3f0519238e33cd7df2f73"
   integrity sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==
 
-camelcase@^5.0.0:
-  version "5.3.1"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
-  integrity sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==
-
 chalk@^2.0.0:
   version "2.4.2"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.2.tgz#cd42541677a54333cf541a49108c1432b44c9424"
@@ -711,13 +706,13 @@ content-type@^1.0.4:
   resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
   integrity sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA==
 
-convict@^6.0.0:
-  version "6.1.0"
-  resolved "https://registry.yarnpkg.com/convict/-/convict-6.1.0.tgz#5b393bd675a0e743390abd0c5bf9e2b9a2edf4b5"
-  integrity sha512-8dzppr6Z9URlm6P8N9NiydFRq2NWtQyf4RZOK5m0Q48fWWuKamHLXD7Qz/SiLvRXnjQcKCuHayIk9Fk51sax0w==
+convict@^6.2.4:
+  version "6.2.4"
+  resolved "https://registry.yarnpkg.com/convict/-/convict-6.2.4.tgz#be290672bf6397eec808d3b11fc5f71785b02a4b"
+  integrity sha512-qN60BAwdMVdofckX7AlohVJ2x9UvjTNoKVXCL2LxFk1l7757EJqf1nySdMkPQer0bt8kQ5lQiyZ9/2NvrFBuwQ==
   dependencies:
     lodash.clonedeep "^4.5.0"
-    yargs-parser "^18.1.3"
+    yargs-parser "^20.2.7"
 
 cookies@~0.8.0:
   version "0.8.0"
@@ -820,11 +815,6 @@ debug@~3.1.0:
   dependencies:
     ms "2.0.0"
 
-decamelize@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
-  integrity sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=
-
 deep-equal@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/deep-equal/-/deep-equal-1.0.1.tgz#f5d260292b660e084eff4cdbc9f08ad3247448b5"
@@ -2647,13 +2637,10 @@ yallist@^4.0.0:
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-4.0.0.tgz#9bb92790d9c0effec63be73519e11a35019a3a72"
   integrity sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==
 
-yargs-parser@^18.1.3:
-  version "18.1.3"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-18.1.3.tgz#be68c4975c6b2abf469236b0c870362fab09a7b0"
-  integrity sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==
-  dependencies:
-    camelcase "^5.0.0"
-    decamelize "^1.2.0"
+yargs-parser@^20.2.7:
+  version "20.2.9"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-20.2.9.tgz#2eb7dc3b0289718fc295f362753845c41a0c94ee"
+  integrity sha512-y11nGElTIV+CT3Zv9t7VKl+Q3hTQoT9a1Qzezhhl6Rp21gJ/IVTW7Z3y9EWXhuUBC2Shnf+DX0antecpAwSP8w==
 
 ylru@^1.2.0:
   version "1.2.1"