diff --git a/package.json b/package.json
index ab05d39..8372f49 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "jimp": "^0.2.28",
     "jquery": "^3.2.1",
     "moment": "^2.18.1",
-    "mongodb": "^2.2.30",
+    "mongodb": "^3.1.13",
     "multer": "^1.3.0",
     "openurl": "^1.1.1",
     "passport": "^0.3.2",
diff --git a/yarn.lock b/yarn.lock
index f7faead..56377b7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -331,6 +331,10 @@ browser-stdout@1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.0.tgz#f351d32969d32fa5d7a5567154263d928ae3bd1f"
 
+bson@^1.1.0:
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/bson/-/bson-1.1.5.tgz#2aaae98fcdf6750c0848b0cba1ddec3c73060a34"
+
 bson@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/bson/-/bson-1.0.4.tgz#93c10d39eaa5b58415cbc4052f3e53e562b0b72c"
@@ -2111,6 +2115,10 @@ media-typer@0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
 
+memory-pager@^1.0.2:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/memory-pager/-/memory-pager-1.5.0.tgz#d8751655d22d384682741c972f2c3d6dfa3e66b5"
+
 merge-descriptors@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
@@ -2229,7 +2237,17 @@ mongodb-core@2.1.14:
     bson "~1.0.4"
     require_optional "~1.0.0"
 
-"mongodb@>= 1.2.0 <3.0.0", mongodb@^2.2.30:
+mongodb-core@3.1.11:
+  version "3.1.11"
+  resolved "https://registry.yarnpkg.com/mongodb-core/-/mongodb-core-3.1.11.tgz#b253038dbb4d7329f3d1c2ee5400bb0c9221fde5"
+  dependencies:
+    bson "^1.1.0"
+    require_optional "^1.0.1"
+    safe-buffer "^5.1.2"
+  optionalDependencies:
+    saslprep "^1.0.0"
+
+"mongodb@>= 1.2.0 <3.0.0":
   version "2.2.30"
   resolved "https://registry.yarnpkg.com/mongodb/-/mongodb-2.2.30.tgz#8ccd801f676c8172040c2f2b47e9602a0d5634ab"
   dependencies:
@@ -2237,6 +2255,13 @@ mongodb-core@2.1.14:
     mongodb-core "2.1.14"
     readable-stream "2.2.7"
 
+mongodb@^3.1.13:
+  version "3.1.13"
+  resolved "https://registry.yarnpkg.com/mongodb/-/mongodb-3.1.13.tgz#f8cdcbb36ad7a08b570bd1271c8525753f75f9f4"
+  dependencies:
+    mongodb-core "3.1.11"
+    safe-buffer "^5.1.2"
+
 ms@0.7.2:
   version "0.7.2"
   resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.2.tgz#ae25cf2512b3885a1d95d7f037868d8431124765"
@@ -2873,7 +2898,7 @@ require-uncached@^1.0.3:
     caller-path "^0.1.0"
     resolve-from "^1.0.0"
 
-require_optional@~1.0.0:
+require_optional@^1.0.1, require_optional@~1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/require_optional/-/require_optional-1.0.1.tgz#4cf35a4247f64ca3df8c2ef208cc494b1ca8fc2e"
   dependencies:
@@ -2950,18 +2975,28 @@ rx-lite@*, rx-lite@^4.0.8:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-4.0.8.tgz#0b1e11af8bc44836f04a6407e92da42467b79444"
 
-safe-buffer@^5.0.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
-  version "5.1.1"
-  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
+safe-buffer@^5.0.1, safe-buffer@^5.1.2:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
 
 safe-buffer@~5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.0.1.tgz#d263ca54696cd8a306b5ca6551e92de57918fbe7"
 
+safe-buffer@~5.1.0, safe-buffer@~5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
+
 samsam@1.x, samsam@^1.1.3:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/samsam/-/samsam-1.2.1.tgz#edd39093a3184370cb859243b2bdf255e7d8ea67"
 
+saslprep@^1.0.0:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/saslprep/-/saslprep-1.0.3.tgz#4c02f946b56cf54297e347ba1093e7acac4cf226"
+  dependencies:
+    sparse-bitfield "^3.0.3"
+
 sax@>=0.6.0:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
@@ -3123,6 +3158,12 @@ sparkles@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/sparkles/-/sparkles-1.0.0.tgz#1acbbfb592436d10bbe8f785b7cc6f82815012c3"
 
+sparse-bitfield@^3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/sparse-bitfield/-/sparse-bitfield-3.0.3.tgz#ff4ae6e68656056ba4b3e792ab3334d38273ca11"
+  dependencies:
+    memory-pager "^1.0.2"
+
 sprintf-js@~1.0.2:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"