diff --git a/server/yarn.lock b/server/yarn.lock
index 0db3241..371dd5f 100644
--- a/server/yarn.lock
+++ b/server/yarn.lock
@@ -539,6 +539,14 @@ bl@^1.0.0:
     readable-stream "^2.3.5"
     safe-buffer "^5.1.1"
 
+bl@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/bl/-/bl-2.2.1.tgz#8c11a7b730655c5d56898cdc871224f40fd901d5"
+  integrity sha512-6Pesp1w0DEX1N550i/uGV/TqucVL4AM/pgThFSN/Qq9si1/DF9aIHs1BxD8V/QU0HoeHO6cQRTAuYnLPKq1e4g==
+  dependencies:
+    readable-stream "^2.3.5"
+    safe-buffer "^5.1.1"
+
 bluebird@^3.5.1:
   version "3.5.3"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.3.tgz#7d01c6f9616c9a51ab0f8c549a79dfe6ec33efa7"
@@ -604,10 +612,10 @@ braces@^2.3.1:
     split-string "^3.0.2"
     to-regex "^3.0.1"
 
-bson@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/bson/-/bson-1.1.0.tgz#bee57d1fb6a87713471af4e32bcae36de814b5b0"
-  integrity sha512-9Aeai9TacfNtWXOYarkFJRW2CWo+dRon+fuLZYJmvLV3+MiUp0bEI6IAZfXEIg7/Pl/7IWlLaDnhzTsD81etQA==
+bson@^1.1.4:
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/bson/-/bson-1.1.5.tgz#2aaae98fcdf6750c0848b0cba1ddec3c73060a34"
+  integrity sha512-kDuEzldR21lHciPQAIulLs1LZlCXdLziXI6Mb/TDkwXhb//UORJNPXgcRs2CuO4H0DcMkpfT3/ySsP3unoZjBg==
 
 buffer-alloc-unsafe@^1.1.0:
   version "1.1.0"
@@ -1074,6 +1082,11 @@ delayed-stream@~1.0.0:
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
   integrity sha1-3zrhmayt+31ECqrgsp4icrJOxhk=
 
+denque@^1.4.1:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/denque/-/denque-1.5.0.tgz#773de0686ff2d8ec2ff92914316a47b73b1c73de"
+  integrity sha512-CYiCSgIF1p6EUByQPlGkKnP1M9g0ZV3qMIrqMqZqdwazygIA/YP2vrbcyl1h/WppKJTdl1F85cXIle+394iDAQ==
+
 depd@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
@@ -2498,9 +2511,9 @@ media-typer@0.3.0:
   integrity sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=
 
 memory-pager@^1.0.2:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/memory-pager/-/memory-pager-1.3.1.tgz#1153d2f5e157a407a436bf54ccf4139037515866"
-  integrity sha512-pUf/sGkym2WqFZYTVmdASnSbNfpGc9rwxEHOePx4lT/fD+NHGL1U16Uy4o6PMiVcDv4mp6MI/vaF0c/Kd1QEUQ==
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/memory-pager/-/memory-pager-1.5.0.tgz#d8751655d22d384682741c972f2c3d6dfa3e66b5"
+  integrity sha512-ZS4Bp4r/Zoeq6+NLJpP+0Zzm0pR8whtGPf1XExKLJBAczGMnSi3It14OiNCStjQjM6NU1okjQGSxgEZN8eBYKg==
 
 merge-descriptors@1.0.1:
   version "1.0.1"
@@ -2590,25 +2603,19 @@ mkdirp@^0.5.1:
   dependencies:
     minimist "0.0.8"
 
-mongodb-core@3.1.9:
-  version "3.1.9"
-  resolved "https://registry.yarnpkg.com/mongodb-core/-/mongodb-core-3.1.9.tgz#c31ee407bf932b0149eaed775c17ee09974e4ca3"
-  integrity sha512-MJpciDABXMchrZphh3vMcqu8hkNf/Mi+Gk6btOimVg1XMxLXh87j6FAvRm+KmwD1A9fpu3qRQYcbQe4egj23og==
+mongodb@^3.1.10:
+  version "3.6.4"
+  resolved "https://registry.yarnpkg.com/mongodb/-/mongodb-3.6.4.tgz#ca59fd65b06831308262372ef9df6b78f9da97be"
+  integrity sha512-Y+Ki9iXE9jI+n9bVtbTOOdK0B95d6wVGSucwtBkvQ+HIvVdTCfpVRp01FDC24uhC/Q2WXQ8Lpq3/zwtB5Op9Qw==
   dependencies:
-    bson "^1.1.0"
+    bl "^2.2.1"
+    bson "^1.1.4"
+    denque "^1.4.1"
     require_optional "^1.0.1"
     safe-buffer "^5.1.2"
   optionalDependencies:
     saslprep "^1.0.0"
 
-mongodb@^3.1.10:
-  version "3.1.10"
-  resolved "https://registry.yarnpkg.com/mongodb/-/mongodb-3.1.10.tgz#45ad9b74ea376f4122d0881b75e5489b9e504ed7"
-  integrity sha512-Uml42GeFxhTGQVml1XQ4cD0o/rp7J2ROy0fdYUcVitoE7vFqEhKH4TYVqRDpQr/bXtCJVxJdNQC1ntRxNREkPQ==
-  dependencies:
-    mongodb-core "3.1.9"
-    safe-buffer "^5.1.2"
-
 ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
@@ -3510,9 +3517,9 @@ safe-regex@^1.1.0:
   integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
 
 saslprep@^1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/saslprep/-/saslprep-1.0.2.tgz#da5ab936e6ea0bbae911ffec77534be370c9f52d"
-  integrity sha512-4cDsYuAjXssUSjxHKRe4DTZC0agDwsCqcMqtJAQPzC74nJ7LfAJflAtC1Zed5hMzEQKj82d3tuzqdGNRsLJ4Gw==
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/saslprep/-/saslprep-1.0.3.tgz#4c02f946b56cf54297e347ba1093e7acac4cf226"
+  integrity sha512-/MY/PEMbk2SuY5sScONwhUDsV2p77Znkb/q3nSVstq/yQzYJOH/Azh29p9oJLsl3LnQwSvZDKagDGBsBwSooag==
   dependencies:
     sparse-bitfield "^3.0.3"
 
@@ -3543,12 +3550,12 @@ semver@4.3.2:
   resolved "https://registry.yarnpkg.com/semver/-/semver-4.3.2.tgz#c7a07158a80bedd052355b770d82d6640f803be7"
   integrity sha1-x6BxWKgL7dBSNVt3DYLWZA+AO+c=
 
-semver@^5.0.3, semver@^5.1.0, semver@^5.4.1:
+semver@^5.0.3, semver@^5.4.1:
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
   integrity sha512-RS9R6R35NYgQn++fkDWaOmqGoj4Ek9gGs+DPxNUZKuwE183xjJroKvyo1IzVFeXvUrvmALy6FWD5xrdJT25gMg==
 
-semver@^5.6.0:
+semver@^5.1.0, semver@^5.6.0:
   version "5.7.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
   integrity sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==