diff --git a/lynel/challenge/server/package-lock.json b/lynel/challenge/server/package-lock.json
index a89110a..2661a7f 100644
--- a/lynel/challenge/server/package-lock.json
+++ b/lynel/challenge/server/package-lock.json
@@ -27,15 +27,10 @@
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@@ -6852,9 +6911,9 @@
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-      "resolved": "https://registry.npmjs.org/shimmer/-/shimmer-1.2.0.tgz",
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@@ -8169,22 +8228,6 @@
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-      "resolved": "https://registry.npmjs.org/terraformer/-/terraformer-1.0.8.tgz",
-      "integrity": "sha1-UeCtiXRvzyFh3G9lqnDkI3fItZM=",
-      "requires": {
-        "@types/geojson": "1.0.6"
-      }
-    },
-    "terraformer-wkt-parser": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/terraformer-wkt-parser/-/terraformer-wkt-parser-1.1.2.tgz",
-      "integrity": "sha1-M2oMj8gglKWv+DKI9prt7NNpvww=",
-      "requires": {
-        "terraformer": "1.0.8"
-      }
-    },
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       "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
@@ -8623,9 +8666,9 @@
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-      "version": "9.4.1",
-      "resolved": "https://registry.npmjs.org/validator/-/validator-9.4.1.tgz",
-      "integrity": "sha512-YV5KjzvRmSyJ1ee/Dm5UED0G+1L4GZnLN3w6/T+zZm8scVua4sOhYKWTUrKa0H/tMiJyO9QLHMPN+9mB/aMunA=="
+      "version": "10.11.0",
+      "resolved": "https://registry.npmjs.org/validator/-/validator-10.11.0.tgz",
+      "integrity": "sha512-X/p3UZerAIsbBfN/IwahhYaBbY68EN/UQBWHtsbXGT5bfrH/p4NQzUCG1kF/rtKaNpnJ7jAu6NGTdSNtyNIXMw=="
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@@ -8764,11 +8807,11 @@
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-      "version": "0.4.4",
-      "resolved": "https://registry.npmjs.org/wkx/-/wkx-0.4.4.tgz",
-      "integrity": "sha512-eVVHka2jRaAp9QanKhLpxWs3AGDV0b8cijlavxBnn4ryXzq5N/3Xe3nkQsI0XMRA16RURwviCWuOCj4mXCmrxw==",
+      "version": "0.4.8",
+      "resolved": "https://registry.npmjs.org/wkx/-/wkx-0.4.8.tgz",
+      "integrity": "sha512-ikPXMM9IR/gy/LwiOSqWlSL3X/J5uk9EO2hHNRXS41eTLXaUFEVw9fn/593jW/tE5tedNg8YjT5HkCa4FqQZyQ==",
       "requires": {
-        "@types/node": "9.6.0"
+        "@types/node": "*"
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diff --git a/lynel/challenge/server/package.json b/lynel/challenge/server/package.json
index d256dab..aaf3309 100644
--- a/lynel/challenge/server/package.json
+++ b/lynel/challenge/server/package.json
@@ -25,7 +25,7 @@
     "passport-local": "^1.0.0",
     "request": "^2.83.0",
     "request-promise": "^4.2.2",
-    "sequelize": "^4.17.0",
+    "sequelize": "^5.15.1",
     "sequelize-temporal": "^1.0.4",
     "socket.io": "^2.0.4",
     "socketio-auth": "^0.1.0",