diff --git a/yarn.lock b/yarn.lock
index 4db08afee..fb4b6a117 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1199,13 +1199,6 @@ bcrypt-pbkdf@^1.0.0:
   dependencies:
     tweetnacl "^0.14.3"
 
-bcrypt@1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/bcrypt/-/bcrypt-1.0.3.tgz#b02ddc6c0b52ea16b8d3cf375d5a32e780dab548"
-  dependencies:
-    nan "2.6.2"
-    node-pre-gyp "0.6.36"
-
 beeper@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/beeper/-/beeper-1.1.1.tgz#e6d5ea8c5dad001304a70b22638447f69cb2f809"
@@ -6851,10 +6844,6 @@ mz@^2.6.0:
     object-assign "^4.0.1"
     thenify-all "^1.0.0"
 
-nan@2.6.2:
-  version "2.6.2"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.6.2.tgz#e4ff34e6c95fdfb5aecc08de6596f43605a7db45"
-
 nan@^2.0.5:
   version "2.8.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.8.0.tgz#ed715f3fe9de02b57a5e6252d90a96675e1f085a"
@@ -6990,7 +6979,7 @@ node-notifier@^5.1.2:
     shellwords "^0.1.0"
     which "^1.2.12"
 
-node-pre-gyp@0.6.36, node-pre-gyp@^0.6.36:
+node-pre-gyp@^0.6.36:
   version "0.6.36"
   resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.36.tgz#db604112cb74e0d477554e9b505b17abddfab786"
   dependencies: