diff --git a/package.json b/package.json
index 5de88b7..d0625fa 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "@babel/polyfill": "^7.10.4",
     "bluebird": "^3.5.1",
     "bunyan": "^1.8.14",
-    "mongodb": "^3.5.9",
+    "mongodb": "^4.9.0",
     "strava-v3": "^2.0.5"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index c20b98d..07aef18 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1464,6 +1464,19 @@
   resolved "https://registry.yarnpkg.com/@types/stack-utils/-/stack-utils-2.0.0.tgz#7036640b4e21cc2f259ae826ce843d277dad8cff"
   integrity sha512-RJJrrySY7A8havqpGObOB4W92QXKJo63/jFLLgpvOtsGUqbQZ9Sbgl35KMm1DjC6j7AvmmU2bIno+3IyEaemaw==
 
+"@types/webidl-conversions@*":
+  version "6.1.1"
+  resolved "https://registry.yarnpkg.com/@types/webidl-conversions/-/webidl-conversions-6.1.1.tgz#e33bc8ea812a01f63f90481c666334844b12a09e"
+  integrity sha512-XAahCdThVuCFDQLT7R7Pk/vqeObFNL3YqRyFZg+AqAP/W1/w3xHaIxuW7WszQqTbIBOPRcItYJIou3i/mppu3Q==
+
+"@types/whatwg-url@^8.2.1":
+  version "8.2.2"
+  resolved "https://registry.yarnpkg.com/@types/whatwg-url/-/whatwg-url-8.2.2.tgz#749d5b3873e845897ada99be4448041d4cc39e63"
+  integrity sha512-FtQu10RWgn3D9U4aazdwIE2yzphmTJREDqNdODHrbrZmmMqI0vMheC/6NE/J1Yveaj8H+ela+YwWTjq5PGmuhA==
+  dependencies:
+    "@types/node" "*"
+    "@types/webidl-conversions" "*"
+
 "@types/yargs-parser@*":
   version "15.0.0"
   resolved "https://registry.yarnpkg.com/@types/yargs-parser/-/yargs-parser-15.0.0.tgz#cb3f9f741869e20cce330ffbeb9271590483882d"
@@ -1810,6 +1823,11 @@ balanced-match@^1.0.0:
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
   integrity sha1-ibTRmasr7kneFk6gK4nORi1xt2c=
 
+base64-js@^1.3.1:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.5.1.tgz#1b1b440160a5bf7ad40b650f095963481903930a"
+  integrity sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==
+
 base@^0.11.1:
   version "0.11.2"
   resolved "https://registry.yarnpkg.com/base/-/base-0.11.2.tgz#7bde5ced145b6d551a90db87f83c558b4eb48a8f"
@@ -1840,14 +1858,6 @@ binary-extensions@^2.0.0:
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-2.1.0.tgz#30fa40c9e7fe07dbc895678cd287024dea241dd9"
   integrity sha512-1Yj8h9Q+QDF5FzhMs/c9+6UntbD5MkRfRwac8DoEm9ZfUBZ7tZ55YcGVAzEe4bXsdQHEk+s9S5wsOKVdZrw0tQ==
 
-bl@^2.2.0:
-  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@^3.5.0, bluebird@^3.5.1:
   version "3.7.2"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.7.2.tgz#9f229c15be272454ffa973ace0dbee79a1b0c36f"
@@ -1907,16 +1917,26 @@ bser@2.1.1:
   dependencies:
     node-int64 "^0.4.0"
 
-bson@^1.1.4:
-  version "1.1.4"
-  resolved "https://registry.yarnpkg.com/bson/-/bson-1.1.4.tgz#f76870d799f15b854dffb7ee32f0a874797f7e89"
-  integrity sha512-S/yKGU1syOMzO86+dGpg2qGoDL0zvzcb262G+gqEy6TgP6rt6z6qxSFX/8X6vLC91P7G7C3nLs0+bvDzmvBA3Q==
+bson@^4.7.0:
+  version "4.7.0"
+  resolved "https://registry.yarnpkg.com/bson/-/bson-4.7.0.tgz#7874a60091ffc7a45c5dd2973b5cad7cded9718a"
+  integrity sha512-VrlEE4vuiO1WTpfof4VmaVolCVYkYTgB9iWgYNOrVlnifpME/06fhFRmONgBhClD5pFC1t9ZWqFUQEQAzY43bA==
+  dependencies:
+    buffer "^5.6.0"
 
 buffer-from@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
   integrity sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==
 
+buffer@^5.6.0:
+  version "5.7.1"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.7.1.tgz#ba62e7c13133053582197160851a8f648e99eed0"
+  integrity sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==
+  dependencies:
+    base64-js "^1.3.1"
+    ieee754 "^1.1.13"
+
 bunyan@^1.8.14:
   version "1.8.14"
   resolved "https://registry.yarnpkg.com/bunyan/-/bunyan-1.8.14.tgz#3d8c1afea7de158a5238c7cb8a66ab6b38dd45b4"
@@ -2339,10 +2359,10 @@ 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 "1.4.1"
-  resolved "https://registry.yarnpkg.com/denque/-/denque-1.4.1.tgz#6744ff7641c148c3f8a69c307e51235c1f4a37cf"
-  integrity sha512-OfzPuSZKGcgr96rf1oODnfjqBFmr1DVoc/TrItj3Ohe0Ah1C5WX5Baquw/9U9KovnQ88EqmJbD66rKYUQYN1tQ==
+denque@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/denque/-/denque-2.1.0.tgz#e93e1a6569fb5e66f16a3c2a2964617d349d6ab1"
+  integrity sha512-HVQE3AAb/pxF8fQAoiqpvg9i3evqug3hoiwakOyZAwJm+6vZehbkYXZ0l4JxS+I3QxM97v5aaRNhj8v5oBhekw==
 
 detect-newline@^3.0.0:
   version "3.1.0"
@@ -3042,6 +3062,11 @@ iconv-lite@0.4.24:
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
+ieee754@^1.1.13:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.2.1.tgz#8eb7a10a63fff25d15a57b001586d177d1b0d352"
+  integrity sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==
+
 ignore-walk@3.0.3:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/ignore-walk/-/ignore-walk-3.0.3.tgz#017e2447184bfeade7c238e4aefdd1e8f95b1e37"
@@ -3098,6 +3123,11 @@ ini@^1.3.4:
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.7.tgz#a09363e1911972ea16d7a8851005d84cf09a9a84"
   integrity sha512-iKpRpXP+CrP2jyrxvg1kMUpXDyRUFDWurxbnVT1vQPx+Wz9uCYsMIqYuSBLV+PAaZG/d7kRLKRFc9oDMsH+mFQ==
 
+ip@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/ip/-/ip-2.0.0.tgz#4cf4ab182fee2314c75ede1276f8c80b479936da"
+  integrity sha512-WKa+XuLG1A1R0UWhl2+1XQSi+fZWMsYKffMZTTYsiZaUD8k2yDAj5atimTUD2TZkyCkNEeYE5NhFZmupOGtjYQ==
+
 is-accessor-descriptor@^0.1.6:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz#a9e12cb3ae8d876727eeef3843f8a0897b5c98d6"
@@ -4187,18 +4217,25 @@ moment@^2.19.3:
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.27.0.tgz#8bff4e3e26a236220dfe3e36de756b6ebaa0105d"
   integrity sha512-al0MUK7cpIcglMv3YF13qSgdAIqxHTO7brRtaz3DlSULbqfazqkc5kEjNrLDOM7fsjshoFIihnU8snrP7zUvhQ==
 
-mongodb@^3.5.9:
-  version "3.5.9"
-  resolved "https://registry.yarnpkg.com/mongodb/-/mongodb-3.5.9.tgz#799b72be8110b7e71a882bb7ce0d84d05429f772"
-  integrity sha512-vXHBY1CsGYcEPoVWhwgxIBeWqP3dSu9RuRDsoLRPTITrcrgm1f0Ubu1xqF9ozMwv53agmEiZm0YGo+7WL3Nbug==
+mongodb-connection-string-url@^2.5.3:
+  version "2.5.3"
+  resolved "https://registry.yarnpkg.com/mongodb-connection-string-url/-/mongodb-connection-string-url-2.5.3.tgz#c0c572b71570e58be2bd52b33dffd1330cfb6990"
+  integrity sha512-f+/WsED+xF4B74l3k9V/XkTVj5/fxFH2o5ToKXd8Iyi5UhM+sO9u0Ape17Mvl/GkZaFtM0HQnzAG5OTmhKw+tQ==
   dependencies:
-    bl "^2.2.0"
-    bson "^1.1.4"
-    denque "^1.4.1"
-    require_optional "^1.0.1"
-    safe-buffer "^5.1.2"
+    "@types/whatwg-url" "^8.2.1"
+    whatwg-url "^11.0.0"
+
+mongodb@^4.9.0:
+  version "4.9.0"
+  resolved "https://registry.yarnpkg.com/mongodb/-/mongodb-4.9.0.tgz#58618439b721f2d6f7d38bb10a4612e29d7f1c8a"
+  integrity sha512-tJJEFJz7OQTQPZeVHZJIeSOjMRqc5eSyXTt86vSQENEErpkiG7279tM/GT5AVZ7TgXNh9HQxoa2ZkbrANz5GQw==
+  dependencies:
+    bson "^4.7.0"
+    denque "^2.1.0"
+    mongodb-connection-string-url "^2.5.3"
+    socks "^2.7.0"
   optionalDependencies:
-    saslprep "^1.0.0"
+    saslprep "^1.0.3"
 
 ms@2.0.0:
   version "2.0.0"
@@ -4636,7 +4673,7 @@ read-pkg@^5.2.0:
     string_decoder "^1.1.1"
     util-deprecate "^1.0.1"
 
-readable-stream@^2.0.2, readable-stream@^2.3.5, readable-stream@~2.3.6:
+readable-stream@^2.0.2, readable-stream@~2.3.6:
   version "2.3.7"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.7.tgz#1eca1cf711aef814c04f62252a36a62f6cb23b57"
   integrity sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==
@@ -4802,14 +4839,6 @@ require-from-string@^2.0.2:
   resolved "https://registry.yarnpkg.com/require-from-string/-/require-from-string-2.0.2.tgz#89a7fdd938261267318eafe14f9c32e598c36909"
   integrity sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==
 
-require_optional@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/require_optional/-/require_optional-1.0.1.tgz#4cf35a4247f64ca3df8c2ef208cc494b1ca8fc2e"
-  integrity sha512-qhM/y57enGWHAe3v/NcwML6a3/vfESLe/sGM2dII+gEO0BpKRUkWZow/tyloNqJyN6kXSl3RyyM8Ll5D/sJP8g==
-  dependencies:
-    resolve-from "^2.0.0"
-    semver "^5.1.0"
-
 resolve-cwd@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/resolve-cwd/-/resolve-cwd-3.0.0.tgz#0f0075f1bb2544766cf73ba6a6e2adfebcb13f2d"
@@ -4822,11 +4851,6 @@ resolve-from@5.0.0, resolve-from@^5.0.0:
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-5.0.0.tgz#c35225843df8f776df21c57557bc087e9dfdfc69"
   integrity sha512-qYg9KP24dD5qka9J47d0aVky0N+b4fTU89LN9iDnjB5waksiC49rvMB0PrUJQGoTmH50XPiqOvAjDfaijGxYZw==
 
-resolve-from@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-2.0.0.tgz#9480ab20e94ffa1d9e80a804c7ea147611966b57"
-  integrity sha1-lICrIOlP+h2egKgEx+oUdhGWa1c=
-
 resolve-from@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-4.0.0.tgz#4abcd852ad32dd7baabfe9b40e00a36db5f392e6"
@@ -4879,7 +4903,7 @@ rimraf@~2.4.0:
   dependencies:
     glob "^6.0.1"
 
-safe-buffer@^5.0.1, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@~5.2.0:
+safe-buffer@^5.0.1, safe-buffer@^5.1.2, safe-buffer@~5.2.0:
   version "5.2.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
   integrity sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==
@@ -4906,7 +4930,7 @@ safe-regex@^1.1.0:
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
   integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
 
-saslprep@^1.0.0:
+saslprep@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/saslprep/-/saslprep-1.0.3.tgz#4c02f946b56cf54297e347ba1093e7acac4cf226"
   integrity sha512-/MY/PEMbk2SuY5sScONwhUDsV2p77Znkb/q3nSVstq/yQzYJOH/Azh29p9oJLsl3LnQwSvZDKagDGBsBwSooag==
@@ -4920,7 +4944,7 @@ saxes@^5.0.1:
   dependencies:
     xmlchars "^2.2.0"
 
-"semver@2 || 3 || 4 || 5", semver@^5.1.0, semver@^5.6.0:
+"semver@2 || 3 || 4 || 5", semver@^5.6.0:
   version "5.7.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
   integrity sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==
@@ -4993,6 +5017,11 @@ slice-ansi@^4.0.0:
     astral-regex "^2.0.0"
     is-fullwidth-code-point "^3.0.0"
 
+smart-buffer@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/smart-buffer/-/smart-buffer-4.2.0.tgz#6e1d71fa4f18c05f7d0ff216dd16a481d0e8d9ae"
+  integrity sha512-94hK0Hh8rPqQl2xXc3HsaBoOXKV20MToPkcXvwbISWLEs+64sBq5kFgn2kJDHb1Pry9yrP0dxrCI9RRci7RXKg==
+
 snapdragon-node@^2.0.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/snapdragon-node/-/snapdragon-node-2.1.1.tgz#6c175f86ff14bdb0724563e8f3c1b021a286853b"
@@ -5023,6 +5052,14 @@ snapdragon@^0.8.1:
     source-map-resolve "^0.5.0"
     use "^3.1.0"
 
+socks@^2.7.0:
+  version "2.7.0"
+  resolved "https://registry.yarnpkg.com/socks/-/socks-2.7.0.tgz#f9225acdb841e874dca25f870e9130990f3913d0"
+  integrity sha512-scnOe9y4VuiNUULJN72GrM26BNOjVsfPXI+j+98PkyEfsIXroa5ofyjT+FzGvn/xHs73U2JtoBYAVx9Hl4quSA==
+  dependencies:
+    ip "^2.0.0"
+    smart-buffer "^4.2.0"
+
 source-map-resolve@^0.5.0:
   version "0.5.3"
   resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.3.tgz#190866bece7553e1f8f267a2ee82c606b5509a1a"
@@ -5406,6 +5443,13 @@ tr46@^2.0.2:
   dependencies:
     punycode "^2.1.1"
 
+tr46@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/tr46/-/tr46-3.0.0.tgz#555c4e297a950617e8eeddef633c87d4d9d6cbf9"
+  integrity sha512-l7FvfAHlcmulp8kr+flpQZmVwtu7nfRV7NZujtN0OqES8EL4O4e0qqzL0DC5gAvx/ZC/9lk6rhcUwYvkBnBnYA==
+  dependencies:
+    punycode "^2.1.1"
+
 trim-newlines@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-3.0.1.tgz#260a5d962d8b752425b32f3a7db0dcacd176c144"
@@ -5634,6 +5678,11 @@ webidl-conversions@^6.1.0:
   resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-6.1.0.tgz#9111b4d7ea80acd40f5270d666621afa78b69514"
   integrity sha512-qBIvFLGiBpLjfwmYAaHPXsn+ho5xZnGvyGvsarywGNc8VyQJUMHJ8OBKGGrPER0okBeMDaan4mNBlgBROxuI8w==
 
+webidl-conversions@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-7.0.0.tgz#256b4e1882be7debbf01d05f0aa2039778ea080a"
+  integrity sha512-VwddBukDzu71offAQR975unBIGqfKZpM+8ZX6ySk8nYhVoo5CYaZyzt3YBvYtRtO+aoGlqxPg/B87NGVZ/fu6g==
+
 whatwg-encoding@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.5.tgz#5abacf777c32166a51d085d6b4f3e7d27113ddb0"
@@ -5646,6 +5695,14 @@ whatwg-mimetype@^2.3.0:
   resolved "https://registry.yarnpkg.com/whatwg-mimetype/-/whatwg-mimetype-2.3.0.tgz#3d4b1e0312d2079879f826aff18dbeeca5960fbf"
   integrity sha512-M4yMwr6mAnQz76TbJm914+gPpB/nCwvZbJU28cUD6dR004SAxDLOOSUaB1JDRqLtaOV/vi0IC5lEAGFgrjGv/g==
 
+whatwg-url@^11.0.0:
+  version "11.0.0"
+  resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-11.0.0.tgz#0a849eebb5faf2119b901bb76fd795c2848d4018"
+  integrity sha512-RKT8HExMpoYx4igMiVMY83lN6UeITKJlBQ+vR/8ZJ8OCdSiN3RwCq+9gH0+Xzj0+5IrM6i4j/6LuvzbZIQgEcQ==
+  dependencies:
+    tr46 "^3.0.0"
+    webidl-conversions "^7.0.0"
+
 whatwg-url@^8.0.0:
   version "8.1.0"
   resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-8.1.0.tgz#c628acdcf45b82274ce7281ee31dd3c839791771"