diff --git a/package.json b/package.json
index 81a0f66..e61f91d 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "multer": "^1.4.1",
     "nunjucks": "^3.2.0",
     "pg": "^7.10.0",
-    "sequelize": "^5.7.4",
+    "sequelize": "^5.15.1",
     "session-file-store": "^1.2.0"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index e282ef0..3a7fa66 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2964,6 +2964,11 @@ semver@4.3.2:
   resolved "https://registry.yarnpkg.com/semver/-/semver-4.3.2.tgz#c7a07158a80bedd052355b770d82d6640f803be7"
   integrity sha1-x6BxWKgL7dBSNVt3DYLWZA+AO+c=
 
+semver@^6.1.1:
+  version "6.3.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
+  integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
+
 send@0.16.2:
   version "0.16.2"
   resolved "https://registry.yarnpkg.com/send/-/send-0.16.2.tgz#6ecca1e0f8c156d141597559848df64730a6bbc1"
@@ -2997,17 +3002,15 @@ sequelize-cli@^5.4.0:
     umzug "^2.1.0"
     yargs "^12.0.5"
 
-sequelize-pool@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/sequelize-pool/-/sequelize-pool-1.0.2.tgz#89c767882bbdb8a41dac66922ed9820939a5401e"
-  integrity sha512-VMKl/gCCdIvB1gFZ7p+oqLFEyZEz3oMMYjkKvfEC7GoO9bBcxmfOOU9RdkoltfXGgBZFigSChihRly2gKtsh2w==
-  dependencies:
-    bluebird "^3.5.3"
+sequelize-pool@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/sequelize-pool/-/sequelize-pool-2.3.0.tgz#64f1fe8744228172c474f530604b6133be64993d"
+  integrity sha512-Ibz08vnXvkZ8LJTiUOxRcj1Ckdn7qafNZ2t59jYHMX1VIebTAOYefWdRYFt6z6+hy52WGthAHAoLc9hvk3onqA==
 
-sequelize@^5.7.4:
-  version "5.7.4"
-  resolved "https://registry.yarnpkg.com/sequelize/-/sequelize-5.7.4.tgz#1631faadff65f3a345b9757fca60429c65ba8e57"
-  integrity sha512-CaVYpAgZQEsGDuZ+Oq6uIZy4pxQxscotuh5UGIaFRa0VkTIgV0IiF7vAhSv+1Wn+NvhKCvgJJ85M34BP3AdGNg==
+sequelize@^5.15.1:
+  version "5.15.1"
+  resolved "https://registry.yarnpkg.com/sequelize/-/sequelize-5.15.1.tgz#f130ded17e74395ae7f5e265277c99577e895afb"
+  integrity sha512-DCzzJYvJLMKnyf8G3at2A+yM9M2fSQmTmuOYIpCWM8Gjqx3XfgNTd1NkuyPWFoi1/d1AXQsN2VDPXkPczida8A==
   dependencies:
     bluebird "^3.5.0"
     cls-bluebird "^2.1.0"
@@ -3018,8 +3021,8 @@ sequelize@^5.7.4:
     moment "^2.24.0"
     moment-timezone "^0.5.21"
     retry-as-promised "^3.1.0"
-    semver "^5.6.0"
-    sequelize-pool "^1.0.2"
+    semver "^6.1.1"
+    sequelize-pool "^2.3.0"
     toposort-class "^1.0.1"
     uuid "^3.2.1"
     validator "^10.11.0"