diff --git a/package.json b/package.json
index 9b56c05..d004dc9 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "author": "Todd H. Page",
   "license": "MIT",
   "dependencies": {
-    "bcrypt": "^3.0.3",
+    "bcrypt": "^5.0.0",
     "esm": "^3.0.84",
     "expo-server-sdk": "^3.1.0",
     "express": "^4.16.4",
diff --git a/yarn.lock b/yarn.lock
index 6f3e584..3fa6123 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -170,13 +170,13 @@ bcrypt-pbkdf@^1.0.0:
   dependencies:
     tweetnacl "^0.14.3"
 
-bcrypt@^3.0.3:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/bcrypt/-/bcrypt-3.0.3.tgz#7d1e9e5d533c5ea060e6ac8834942c004dbffe9c"
-  integrity sha512-4EuzUo6K790QC3uq/ogzy9w2Hc7XDIBoEndU5y7l7YaEAwQF8vyFqv6tC30+gOBZvyxk3F632xzKBQoLNz2pjg==
+bcrypt@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/bcrypt/-/bcrypt-5.0.0.tgz#051407c7cd5ffbfb773d541ca3760ea0754e37e2"
+  integrity sha512-jB0yCBl4W/kVHM2whjfyqnxTmOHkCX4kHEa5nYKSoGeYe8YrjTYTc87/6bwt1g8cmV0QrbhKriETg9jWtcREhg==
   dependencies:
-    nan "2.12.1"
-    node-pre-gyp "0.12.0"
+    node-addon-api "^3.0.0"
+    node-pre-gyp "0.15.0"
 
 body-parser@1.18.3:
   version "1.18.3"
@@ -281,13 +281,20 @@ dashdash@^1.12.0:
   dependencies:
     assert-plus "^1.0.0"
 
-debug@2.6.9, debug@^2.1.2:
+debug@2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   integrity sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==
   dependencies:
     ms "2.0.0"
 
+debug@^3.2.6:
+  version "3.2.6"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
+  integrity sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==
+  dependencies:
+    ms "^2.1.1"
+
 deep-extend@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.6.0.tgz#c4fa7c95404a17a9c3e8ca7e1537312b736330ac"
@@ -780,7 +787,12 @@ minimist@^1.2.0:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
   integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
 
-minipass@^2.2.1, minipass@^2.3.4:
+minimist@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
+  integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
+
+minipass@^2.2.1:
   version "2.3.5"
   resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.3.5.tgz#cacebe492022497f656b0f0f51e2682a9ed2d848"
   integrity sha512-Gi1W4k059gyRbyVUZQ4mEqLm0YIUiGYfvxhF6SIlk3ui1WVxMTGfGdQ2SInh3PDrRTVvPKgULkpJtT4RH10+VA==
@@ -788,20 +800,35 @@ minipass@^2.2.1, minipass@^2.3.4:
     safe-buffer "^5.1.2"
     yallist "^3.0.0"
 
-minizlib@^1.1.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.2.1.tgz#dd27ea6136243c7c880684e8672bb3a45fd9b614"
-  integrity sha512-7+4oTUOWKg7AuL3vloEWekXY2/D20cevzsrNT2kGWm+39J9hGTCBv8VI5Pm5lXZ/o3/mdR4f8rflAPhnQb8mPA==
+minipass@^2.8.6, minipass@^2.9.0:
+  version "2.9.0"
+  resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.9.0.tgz#e713762e7d3e32fed803115cf93e04bca9fcc9a6"
+  integrity sha512-wxfUjg9WebH+CUDX/CdbRlh5SmfZiy/hpkxaRI16Y9W56Pa75sWgd/rvFilSgrauD9NyFymP/+JFV3KwzIsJeg==
   dependencies:
-    minipass "^2.2.1"
+    safe-buffer "^5.1.2"
+    yallist "^3.0.0"
 
-mkdirp@^0.5.0, mkdirp@^0.5.1:
+minizlib@^1.2.1:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.3.3.tgz#2290de96818a34c29551c8a8d301216bd65a861d"
+  integrity sha512-6ZYMOEnmVsdCeTJVE0W9ZD+pVnE8h9Hma/iOwwRDsdQoePpoX56/8B6z3P9VNwppJuBKNRuFDRNRqRWexT9G9Q==
+  dependencies:
+    minipass "^2.9.0"
+
+mkdirp@^0.5.0:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
   dependencies:
     minimist "0.0.8"
 
+mkdirp@^0.5.3:
+  version "0.5.5"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
+  integrity sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==
+  dependencies:
+    minimist "^1.2.5"
+
 moment@2.19.3:
   version "2.19.3"
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.19.3.tgz#bdb99d270d6d7fda78cc0fbace855e27fe7da69f"
@@ -843,17 +870,12 @@ ms@^2.1.1:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
   integrity sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==
 
-nan@2.12.1:
-  version "2.12.1"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.12.1.tgz#7b1aa193e9aa86057e3c7bbd0ac448e770925552"
-  integrity sha512-JY7V6lRkStKcKTvHO5NVSQRv+RV+FIL5pvDoLiAtSL9pKlC5x9PKQcZDsq7m4FO4d57mkhC6Z+QhAh3Jdk5JFw==
-
-needle@^2.2.1:
-  version "2.2.4"
-  resolved "https://registry.yarnpkg.com/needle/-/needle-2.2.4.tgz#51931bff82533b1928b7d1d69e01f1b00ffd2a4e"
-  integrity sha512-HyoqEb4wr/rsoaIDfTH2aVL9nWtQqba2/HvMv+++m8u0dz808MaagKILxtfeSN7QU7nvbQ79zk3vYOJp9zsNEA==
+needle@^2.5.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/needle/-/needle-2.5.0.tgz#e6fc4b3cc6c25caed7554bd613a5cf0bac8c31c0"
+  integrity sha512-o/qITSDR0JCyCKEQ1/1bnUXMmznxabbwi/Y4WwJElf+evwJNFNwIDMCCt5IigFVxgeGBJESLohGtIS9gEzo1fA==
   dependencies:
-    debug "^2.1.2"
+    debug "^3.2.6"
     iconv-lite "^0.4.4"
     sax "^1.2.4"
 
@@ -862,26 +884,31 @@ negotiator@0.6.1:
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
   integrity sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk=
 
+node-addon-api@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-3.0.0.tgz#812446a1001a54f71663bed188314bba07e09247"
+  integrity sha512-sSHCgWfJ+Lui/u+0msF3oyCgvdkhxDbkCS6Q8uiJquzOimkJBvX6hl5aSSA7DR1XbMpdM8r7phjcF63sF4rkKg==
+
 node-fetch@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.3.0.tgz#1a1d940bbfb916a1d3e0219f037e89e71f8c5fa5"
   integrity sha512-MOd8pV3fxENbryESLgVIeaGKrdl+uaYhCSSVkjeOb/31/njTpcis5aWfdqgNlHIrKOLRbMnfPINPOML2CIFeXA==
 
-node-pre-gyp@0.12.0:
-  version "0.12.0"
-  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.12.0.tgz#39ba4bb1439da030295f899e3b520b7785766149"
-  integrity sha512-4KghwV8vH5k+g2ylT+sLTjy5wmUOb9vPhnM8NHvRf9dHmnW/CndrFXy2aRPaPST6dugXSdHXfeaHQm77PIz/1A==
+node-pre-gyp@0.15.0:
+  version "0.15.0"
+  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.15.0.tgz#c2fc383276b74c7ffa842925241553e8b40f1087"
+  integrity sha512-7QcZa8/fpaU/BKenjcaeFF9hLz2+7S9AqyXFhlH/rilsQ/hPZKK32RtR5EQHJElgu+q5RfbJ34KriI79UWaorA==
   dependencies:
     detect-libc "^1.0.2"
-    mkdirp "^0.5.1"
-    needle "^2.2.1"
+    mkdirp "^0.5.3"
+    needle "^2.5.0"
     nopt "^4.0.1"
     npm-packlist "^1.1.6"
     npmlog "^4.0.2"
     rc "^1.2.7"
     rimraf "^2.6.1"
     semver "^5.3.0"
-    tar "^4"
+    tar "^4.4.2"
 
 nopt@^4.0.1:
   version "4.0.1"
@@ -1278,18 +1305,18 @@ strip-json-comments@~2.0.1:
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
   integrity sha1-PFMZQukIwml8DsNEhYwobHygpgo=
 
-tar@^4:
-  version "4.4.8"
-  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.8.tgz#b19eec3fde2a96e64666df9fdb40c5ca1bc3747d"
-  integrity sha512-LzHF64s5chPQQS0IYBn9IN5h3i98c12bo4NCO7e0sGM2llXQ3p2FGC5sdENN4cTW48O915Sh+x+EXx7XW96xYQ==
+tar@^4.4.2:
+  version "4.4.13"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.13.tgz#43b364bc52888d555298637b10d60790254ab525"
+  integrity sha512-w2VwSrBoHa5BsSyH+KxEqeQBAllHhccyMFVHtGtdMpF4W7IRWfZjFiQceJPChOeTsSDVUpER2T8FA93pr0L+QA==
   dependencies:
     chownr "^1.1.1"
     fs-minipass "^1.2.5"
-    minipass "^2.3.4"
-    minizlib "^1.1.1"
+    minipass "^2.8.6"
+    minizlib "^1.2.1"
     mkdirp "^0.5.0"
     safe-buffer "^5.1.2"
-    yallist "^3.0.2"
+    yallist "^3.0.3"
 
 tough-cookie@~2.4.3:
   version "2.4.3"
@@ -1398,7 +1425,12 @@ xmlbuilder@9.0.1:
   resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-9.0.1.tgz#91cd70897755363eba57c12ddeeab4a341a61f65"
   integrity sha1-kc1wiXdVNj66V8Et3uq0o0GmH2U=
 
-yallist@^3.0.0, yallist@^3.0.2:
+yallist@^3.0.0:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.3.tgz#b4b049e314be545e3ce802236d6cd22cd91c3de9"
   integrity sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==
+
+yallist@^3.0.3:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.1.1.tgz#dbb7daf9bfd8bac9ab45ebf602b8cbad0d5d08fd"
+  integrity sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==