diff --git a/package.json b/package.json
index b652627..ed05c9e 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "express": "^4.16.3",
     "express-validator": "^5.2.0",
     "http-status-codes": "^1.3.0",
-    "jsonwebtoken": "^8.2.1",
+    "jsonwebtoken": "^9.0.0",
     "limax": "^1.6.0",
     "lodash": "^4.17.10",
     "mailchimp-api-v3": "^1.12.0",
diff --git a/yarn.lock b/yarn.lock
index 697269f..d0775b0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -807,9 +807,9 @@ ecc-jsbn@~0.1.1:
   dependencies:
     jsbn "~0.1.0"
 
-ecdsa-sig-formatter@1.0.10:
-  version "1.0.10"
-  resolved "https://registry.yarnpkg.com/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.10.tgz#1c595000f04a8897dfb85000892a0f4c33af86c3"
+ecdsa-sig-formatter@1.0.11:
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.11.tgz#ae0f0fa2d85045ef14a817daa3ce9acd0489e5bf"
   dependencies:
     safe-buffer "^5.0.1"
 
@@ -1019,7 +1019,7 @@ etag@~1.8.1:
 
 event-stream@~3.3.0:
   version "3.3.4"
-  resolved "http://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
+  resolved "https://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
   dependencies:
     duplexer "~0.1.1"
     from "~0"
@@ -1719,7 +1719,7 @@ jsonify@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
 
-jsonwebtoken@^8.2.0, jsonwebtoken@^8.2.1:
+jsonwebtoken@^8.2.0:
   version "8.3.0"
   resolved "https://registry.yarnpkg.com/jsonwebtoken/-/jsonwebtoken-8.3.0.tgz#056c90eee9a65ed6e6c72ddb0a1d325109aaf643"
   dependencies:
@@ -1733,6 +1733,15 @@ jsonwebtoken@^8.2.0, jsonwebtoken@^8.2.1:
     lodash.once "^4.0.0"
     ms "^2.1.1"
 
+jsonwebtoken@^9.0.0:
+  version "9.0.0"
+  resolved "https://registry.yarnpkg.com/jsonwebtoken/-/jsonwebtoken-9.0.0.tgz#d0faf9ba1cc3a56255fe49c0961a67e520c1926d"
+  dependencies:
+    jws "^3.2.2"
+    lodash "^4.17.21"
+    ms "^2.1.1"
+    semver "^7.3.8"
+
 jsprim@^1.2.2:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/jsprim/-/jsprim-1.4.1.tgz#313e66bc1e5cc06e438bc1b7499c2e5c56acb6a2"
@@ -1754,19 +1763,19 @@ juice@^4.1.0:
     slick "^1.12.2"
     web-resource-inliner "^4.2.1"
 
-jwa@^1.1.5:
-  version "1.1.6"
-  resolved "https://registry.yarnpkg.com/jwa/-/jwa-1.1.6.tgz#87240e76c9808dbde18783cf2264ef4929ee50e6"
+jwa@^1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/jwa/-/jwa-1.4.1.tgz#743c32985cb9e98655530d53641b66c8645b039a"
   dependencies:
     buffer-equal-constant-time "1.0.1"
-    ecdsa-sig-formatter "1.0.10"
+    ecdsa-sig-formatter "1.0.11"
     safe-buffer "^5.0.1"
 
-jws@^3.1.5:
-  version "3.1.5"
-  resolved "https://registry.yarnpkg.com/jws/-/jws-3.1.5.tgz#80d12d05b293d1e841e7cb8b4e69e561adcf834f"
+jws@^3.1.5, jws@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/jws/-/jws-3.2.2.tgz#001099f3639468c9414000e99995fa52fb478304"
   dependencies:
-    jwa "^1.1.5"
+    jwa "^1.4.1"
     safe-buffer "^5.0.1"
 
 kareem@2.2.1:
@@ -1917,9 +1926,9 @@ lodash.unescape@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/lodash.unescape/-/lodash.unescape-4.0.1.tgz#bf2249886ce514cda112fae9218cdc065211fc9c"
 
-lodash@^4.17.10, lodash@^4.17.2, lodash@^4.17.4, lodash@^4.3.0:
-  version "4.17.10"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
+lodash@^4.17.10, lodash@^4.17.2, lodash@^4.17.21, lodash@^4.17.4, lodash@^4.3.0:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 loose-envify@^1.0.0:
   version "1.4.0"
@@ -1944,6 +1953,12 @@ lru-cache@^4.0.1:
     pseudomap "^1.0.2"
     yallist "^2.1.2"
 
+lru-cache@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-6.0.0.tgz#6d6fe6570ebd96aaf90fcad1dafa3b2566db3a94"
+  dependencies:
+    yallist "^4.0.0"
+
 mailchimp-api-v3@^1.12.0:
   version "1.12.0"
   resolved "https://registry.yarnpkg.com/mailchimp-api-v3/-/mailchimp-api-v3-1.12.0.tgz#5e8a59ef357291ace1021f0df257fe144d1ffefb"
@@ -3177,6 +3192,12 @@ sax@>=0.6.0, sax@^1.2.4:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
 
+semver@^7.3.8:
+  version "7.3.8"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.8.tgz#07a78feafb3f7b32347d725e33de7e2a2df67798"
+  dependencies:
+    lru-cache "^6.0.0"
+
 send@0.16.2:
   version "0.16.2"
   resolved "https://registry.yarnpkg.com/send/-/send-0.16.2.tgz#6ecca1e0f8c156d141597559848df64730a6bbc1"
@@ -3627,6 +3648,10 @@ yallist@^3.0.0, yallist@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.2.tgz#8452b4bb7e83c7c188d8041c1a837c773d6d8bb9"
 
+yallist@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-4.0.0.tgz#9bb92790d9c0effec63be73519e11a35019a3a72"
+
 yargs-parser@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-7.0.0.tgz#8d0ac42f16ea55debd332caf4c4038b3e3f5dfd9"