diff --git a/yarn.lock b/yarn.lock
index 2d5dfb7..271e1d3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -546,7 +546,7 @@
 
 "@expo/vector-icons@^6.3.1":
   version "6.3.1"
-  resolved "http://registry.npmjs.org/@expo/vector-icons/-/vector-icons-6.3.1.tgz#ffb97cc2343e4a330b44ce3063ee7c8571a6a50d"
+  resolved "https://registry.npmjs.org/@expo/vector-icons/-/vector-icons-6.3.1.tgz#ffb97cc2343e4a330b44ce3063ee7c8571a6a50d"
   dependencies:
     lodash "^4.17.4"
     react-native-vector-icons "4.5.0"
@@ -614,8 +614,8 @@ acorn-globals@^4.1.0:
     acorn "^5.0.0"
 
 acorn@^5.0.0, acorn@^5.5.3:
-  version "5.7.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.1.tgz#f095829297706a7c9776958c0afc8930a9b9d9d8"
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
 
 agent-base@4, agent-base@^4.1.0, agent-base@^4.2.0:
   version "4.2.1"