diff --git a/keyserver/package.json b/keyserver/package.json
--- a/keyserver/package.json
+++ b/keyserver/package.json
@@ -58,7 +58,7 @@
     "lodash": "^4.17.21",
     "multer": "^1.4.1",
     "mysql2": "^1.5.1",
-    "node-schedule": "^1.3.0",
+    "node-schedule": "^2.1.0",
     "nodemailer": "^6.6.1",
     "react": "17.0.2",
     "react-dom": "17.0.2",
diff --git a/yarn.lock b/yarn.lock
--- a/yarn.lock
+++ b/yarn.lock
@@ -5811,13 +5811,13 @@
     safe-buffer "^5.0.1"
     sha.js "^2.4.8"
 
-cron-parser@^2.7.3:
-  version "2.13.0"
-  resolved "https://registry.yarnpkg.com/cron-parser/-/cron-parser-2.13.0.tgz#6f930bb6f2931790d2a9eec83b3ec276e27a6725"
-  integrity sha512-UWeIpnRb0eyoWPVk+pD3TDpNx3KCFQeezO224oJIkktBrcW6RoAPOx5zIKprZGfk6vcYSmA8yQXItejSaDBhbQ==
+cron-parser@^3.5.0:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/cron-parser/-/cron-parser-3.5.0.tgz#b1a9da9514c0310aa7ef99c2f3f1d0f8c235257c"
+  integrity sha512-wyVZtbRs6qDfFd8ap457w3XVntdvqcwBGxBoTvJQH9KGVKL/fB+h2k3C8AqiVxvUQKN1Ps/Ns46CNViOpVDhfQ==
   dependencies:
-    is-nan "^1.2.1"
-    moment-timezone "^0.5.25"
+    is-nan "^1.3.2"
+    luxon "^1.26.0"
 
 cross-fetch@^3.0.4:
   version "3.1.5"
@@ -6370,7 +6370,7 @@
   resolved "https://registry.yarnpkg.com/define-lazy-prop/-/define-lazy-prop-2.0.0.tgz#3f7ae421129bcaaac9bc74905c98a0009ec9ee7f"
   integrity sha512-Ds09qNh8yw3khSjiJjiUInaGX9xlqZDY7JVryGxdxV7NPeuqQfplOpQ66yJFZut3jLa5zOwkXw1g9EI2uKh4Og==
 
-define-properties@^1.1.1, define-properties@^1.1.2, define-properties@^1.1.3:
+define-properties@^1.1.2, define-properties@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.3.tgz#cf88da6cbee26fe6db7094f61d870cbd84cee9f1"
   integrity sha512-3MqfYKj2lLzdMSf8ZIZE/V+Zuy+BgD6f164e8K2w7dgnpKArBDerGYpM46IYYcjnkdPNMjPk9A6VFB8+3SKlXQ==
@@ -9511,12 +9511,13 @@
   resolved "https://registry.yarnpkg.com/is-map/-/is-map-2.0.1.tgz#520dafc4307bb8ebc33b813de5ce7c9400d644a1"
   integrity sha512-T/S49scO8plUiAOA2DBTBG3JHpn1yiw0kRp6dgiZ0v2/6twi5eiB0rHtHFH9ZIrvlWc6+4O+m4zg5+Z833aXgw==
 
-is-nan@^1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/is-nan/-/is-nan-1.2.1.tgz#9faf65b6fb6db24b7f5c0628475ea71f988401e2"
-  integrity sha1-n69ltvttskt/XAYoR16nH5iEAeI=
+is-nan@^1.3.2:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/is-nan/-/is-nan-1.3.2.tgz#043a54adea31748b55b6cd4e09aadafa69bd9e1d"
+  integrity sha512-E+zBKpQ2t6MEo1VsonYmluk9NxGrbzpeeLC2xIViuO2EjU2xsXsBPwTr3Ykv9l08UYEVEdWeRZNouaZqF6RN0w==
   dependencies:
-    define-properties "^1.1.1"
+    call-bind "^1.0.0"
+    define-properties "^1.1.3"
 
 is-negative-zero@^2.0.1:
   version "2.0.1"
@@ -11272,6 +11273,11 @@
     lodash.clonedeep "^4.5.0"
     lru-cache "~4.0.0"
 
+luxon@^1.26.0:
+  version "1.28.0"
+  resolved "https://registry.yarnpkg.com/luxon/-/luxon-1.28.0.tgz#e7f96daad3938c06a62de0fb027115d251251fbf"
+  integrity sha512-TfTiyvZhwBYM/7QdAVDh+7dBTBA29v4ik0Ce9zda3Mnf8on1S5KJI8P2jKFZ8+5C0jhmr0KwJEO/Wdpm0VeWJQ==
+
 macos-release@^2.2.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/macos-release/-/macos-release-2.3.0.tgz#eb1930b036c0800adebccd5f17bc4c12de8bb71f"
@@ -12076,18 +12082,6 @@
   resolved "https://registry.yarnpkg.com/mockdate/-/mockdate-3.0.5.tgz#789be686deb3149e7df2b663d2bc4392bc3284fb"
   integrity sha512-iniQP4rj1FhBdBYS/+eQv7j1tadJ9lJtdzgOpvsOHng/GbcDh2Fhdeq+ZRldrPYdXvCyfFUmFeEwEGXZB5I/AQ==
 
-moment-timezone@^0.5.25:
-  version "0.5.26"
-  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.26.tgz#c0267ca09ae84631aa3dc33f65bedbe6e8e0d772"
-  integrity sha512-sFP4cgEKTCymBBKgoxZjYzlSovC20Y6J7y3nanDc5RoBIXKlZhoYwBoZGe3flwU6A372AcRwScH8KiwV6zjy1g==
-  dependencies:
-    moment ">= 2.9.0"
-
-"moment@>= 2.9.0":
-  version "2.24.0"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.24.0.tgz#0d055d53f5052aa653c9f6eb68bb5d12bf5c2b5b"
-  integrity sha512-bV7f+6l2QigeBBZSM/6yTNq4P2fNpSWj/0e7jQcy87A8e7o2nAfP/34/2ky5Vw4B9S446EtIhodAzkFCcR4dQg==
-
 morgan@^1.10.0:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/morgan/-/morgan-1.10.0.tgz#091778abc1fc47cd3509824653dae1faab6b17d7"
@@ -12416,14 +12410,14 @@
   resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-2.0.3.tgz#225ee7488e4a5e636da8da52854844f9d716ca96"
   integrity sha512-maHFz6OLqYxz+VQyCAtA3PTX4UP/53pa05fyDNc9CwjvJ0yEh6+xBwKsgCxMNhS8taUKBFYxfuiaD9U/55iFaw==
 
-node-schedule@^1.3.0:
-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/node-schedule/-/node-schedule-1.3.2.tgz#d774b383e2a6f6ade59eecc62254aea07cd758cb"
-  integrity sha512-GIND2pHMHiReSZSvS6dpZcDH7pGPGFfWBIEud6S00Q8zEIzAs9ommdyRK1ZbQt8y1LyZsJYZgPnyi7gpU2lcdw==
+node-schedule@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/node-schedule/-/node-schedule-2.1.0.tgz#068ae38d7351c330616f7fe7cdb05036f977cbaf"
+  integrity sha512-nl4JTiZ7ZQDc97MmpTq9BQjYhq7gOtoh7SiPH069gBFBj0PzD8HI7zyFs6rzqL8Y5tTiEEYLxgtbx034YPrbyQ==
   dependencies:
-    cron-parser "^2.7.3"
+    cron-parser "^3.5.0"
     long-timeout "0.1.1"
-    sorted-array-functions "^1.0.0"
+    sorted-array-functions "^1.3.0"
 
 node-stream-zip@^1.9.1:
   version "1.11.2"
@@ -15962,10 +15956,10 @@
   dependencies:
     is-plain-obj "^1.0.0"
 
-sorted-array-functions@^1.0.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/sorted-array-functions/-/sorted-array-functions-1.2.0.tgz#43265b21d6e985b7df31621b1c11cc68d8efc7c3"
-  integrity sha512-sWpjPhIZJtqO77GN+LD8dDsDKcWZ9GCOJNqKzi1tvtjGIzwfoyuRH8S0psunmc6Z5P+qfDqztSbwYR5X/e1UTg==
+sorted-array-functions@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/sorted-array-functions/-/sorted-array-functions-1.3.0.tgz#8605695563294dffb2c9796d602bd8459f7a0dd5"
+  integrity sha512-2sqgzeFlid6N4Z2fUQ1cvFmTOLRi/sEDzSQ0OKYchqgoPmQBVyM3959qYx3fpS6Esef80KjmpgPeEr028dP3OA==
 
 source-list-map@^2.0.0:
   version "2.0.1"