diff --git a/controllers/PostsController.js b/controllers/PostsController.js
index f5973f10..6e39d083 100644
--- a/controllers/PostsController.js
+++ b/controllers/PostsController.js
@@ -1,6 +1,7 @@
 var post = rootRequire('models/Post');
 var user = rootRequire('models/User');
 var Sequelize = require('sequelize');
+const Op = Sequelize.Op;
 
 var models = { post: post, user: user };
 
@@ -123,9 +124,9 @@ var PostsController = {
   search: function(term, offset = 0) {
     return post.findAll({
       where: {
-        $or: {
+        [Op.or]: {
           body: {
-            $iLike: `%${term}%`,
+            [Op.iLike]: `%${term}%`,
           },
         },
       },
diff --git a/package-lock.json b/package-lock.json
index 32c1873a..05b2ad94 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -63,11 +63,6 @@
         "lodash.get": "^4.4.2"
       }
     },
-    "@types/geojson": {
-      "version": "1.0.6",
-      "resolved": "https://registry.npmjs.org/@types/geojson/-/geojson-1.0.6.tgz",
-      "integrity": "sha512-Xqg/lIZMrUd0VRmSRbCAewtwGZiAk3mEUDvV4op1tGl+LvyPcb/MIOSxTl9z+9+J+R4/vpjiCAT4xeKzH9ji1w=="
-    },
     "@types/node": {
       "version": "10.12.18",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-10.12.18.tgz",
@@ -7902,22 +7897,11 @@
       }
     },
     "retry-as-promised": {
-      "version": "2.3.2",
-      "resolved": "https://registry.npmjs.org/retry-as-promised/-/retry-as-promised-2.3.2.tgz",
-      "integrity": "sha1-zZdO5P2bX+A8vzGHHuSCIcB3N7c=",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/retry-as-promised/-/retry-as-promised-3.1.0.tgz",
+      "integrity": "sha512-g6T9rr5G4AfRVJZcnCbbmpcTDw8NJSnmVrvrJ9Pm9OWAzigocIcFp4+ItwHGJIr0wx0YzwlCJOvvEKQrZhzPOw==",
       "requires": {
-        "bluebird": "^3.4.6",
-        "debug": "^2.6.9"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "2.6.9",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-          "requires": {
-            "ms": "2.0.0"
-          }
-        }
+        "any-promise": "^1.3.0"
       }
     },
     "rgb": {
@@ -8049,41 +8033,40 @@
       }
     },
     "sequelize": {
-      "version": "4.42.0",
-      "resolved": "https://registry.npmjs.org/sequelize/-/sequelize-4.42.0.tgz",
-      "integrity": "sha512-qxAYnX4rcv7PbNtEidb56REpxNJCdbN0qyk1jb3+e6sE7OrmS0nYMU+MFVbNTJtZfSpOEEL1TX0TkMw+wzZBxg==",
+      "version": "5.0.0-beta.15",
+      "resolved": "https://registry.npmjs.org/sequelize/-/sequelize-5.0.0-beta.15.tgz",
+      "integrity": "sha512-03AP0+j6L4/YYVAhP6RENCXlSckvnsAFoG3NwAfmlrvF3VUNaNNliTqOen93loHpa3zXXUyV2Qm/UJNHfRjGiA==",
       "requires": {
         "bluebird": "^3.5.0",
         "cls-bluebird": "^2.1.0",
-        "debug": "^3.1.0",
-        "depd": "^1.1.0",
+        "debug": "^4.1.0",
+        "depd": "^2.0.0",
         "dottie": "^2.0.0",
-        "generic-pool": "^3.4.0",
         "inflection": "1.12.0",
-        "lodash": "^4.17.1",
-        "moment": "^2.20.0",
-        "moment-timezone": "^0.5.14",
-        "retry-as-promised": "^2.3.2",
-        "semver": "^5.5.0",
-        "terraformer-wkt-parser": "^1.1.2",
+        "lodash": "^4.17.11",
+        "moment": "^2.22.2",
+        "moment-timezone": "^0.5.21",
+        "retry-as-promised": "^3.1.0",
+        "semver": "^5.6.0",
+        "sequelize-pool": "^1.0.0",
         "toposort-class": "^1.0.1",
         "uuid": "^3.2.1",
         "validator": "^10.4.0",
-        "wkx": "^0.4.1"
+        "wkx": "^0.4.5"
       },
       "dependencies": {
         "debug": {
-          "version": "3.2.6",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
-          "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
           "requires": {
             "ms": "^2.1.1"
           }
         },
-        "generic-pool": {
-          "version": "3.4.2",
-          "resolved": "https://registry.npmjs.org/generic-pool/-/generic-pool-3.4.2.tgz",
-          "integrity": "sha512-H7cUpwCQSiJmAHM4c/aFu6fUfrhWXW1ncyh8ftxEPMu6AiYkHw9K8br720TGPZJbk5eOH2bynjZD1yPvdDAmag=="
+        "depd": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
+          "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw=="
         },
         "ms": {
           "version": "2.1.1",
@@ -8213,6 +8196,21 @@
         }
       }
     },
+    "sequelize-pool": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/sequelize-pool/-/sequelize-pool-1.0.1.tgz",
+      "integrity": "sha512-Gj7lIou35ZR8LPLu4Dngv9comEjYaDvEN8kllRt+7RCG8yYzwUDo7FD7PDdZnqUm2+UTVRO+VjooRF+ffWQpUg==",
+      "requires": {
+        "bluebird": "^3.5.2"
+      },
+      "dependencies": {
+        "bluebird": {
+          "version": "3.5.3",
+          "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.3.tgz",
+          "integrity": "sha512-/qKPUQlaW1OyR51WeCPBvRnAlnZFUJkCSG5HzGnuIqhgyJtF+T94lFnn33eiazjRm2LAHVy2guNnaq48X9SJuw=="
+        }
+      }
+    },
     "serve-static": {
       "version": "1.13.2",
       "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.13.2.tgz",
@@ -8820,23 +8818,6 @@
         "through2": "^2.0.1"
       }
     },
-    "terraformer": {
-      "version": "1.0.9",
-      "resolved": "https://registry.npmjs.org/terraformer/-/terraformer-1.0.9.tgz",
-      "integrity": "sha512-YlmQ1fsMWTkKGDGibCRWgmLzrpDRUr63Q025LJ/taYQ6j1Yb8q9McKF7NBi6ACAyUXO6F/bl9w6v4MY307y5Ag==",
-      "requires": {
-        "@types/geojson": "^1.0.0"
-      }
-    },
-    "terraformer-wkt-parser": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/terraformer-wkt-parser/-/terraformer-wkt-parser-1.2.0.tgz",
-      "integrity": "sha512-QU3iA54St5lF8Za1jg1oj4NYc8sn5tCZ08aNSWDeGzrsaV48eZk1iAVWasxhNspYBoCqdHuoot1pUTUrE1AJ4w==",
-      "requires": {
-        "@types/geojson": "^1.0.0",
-        "terraformer": "~1.0.5"
-      }
-    },
     "terser": {
       "version": "3.14.1",
       "resolved": "https://registry.npmjs.org/terser/-/terser-3.14.1.tgz",
diff --git a/package.json b/package.json
index baebf71b..db78dbb5 100644
--- a/package.json
+++ b/package.json
@@ -80,7 +80,7 @@
     "react-proxy": "^1.1.8",
     "react-router": "^3.2.1",
     "redux": "^3.7.2",
-    "sequelize": "^4.42.0",
+    "sequelize": "^5.0.0-beta.15",
     "sequelize-cli": "^5.4.0",
     "sinon": "^7.2.2",
     "sinon-test": "^2.4.0",