diff --git a/yarn.lock b/yarn.lock
index c939878..95d1718 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -36,8 +36,8 @@
   resolved "https://registry.yarnpkg.com/@sindresorhus/is/-/is-0.7.0.tgz#9a06f4f137ee84d7df0460c1fdb1135ffa6c50fd"
 
 "@tootallnate/once@1":
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/@tootallnate/once/-/once-1.0.0.tgz#9c13c2574c92d4503b005feca8f2e16cc1611506"
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/@tootallnate/once/-/once-1.1.2.tgz#ccb91445360179a04e7fe6aff78c00ffc1eeaf82"
 
 abbrev@1:
   version "1.1.1"
@@ -69,8 +69,8 @@ agent-base@5:
   resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-5.1.1.tgz#e8fb3f242959db44d63be665db7a8e739537a32c"
 
 agent-base@6:
-  version "6.0.0"
-  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-6.0.0.tgz#5d0101f19bbfaed39980b22ae866de153b93f09a"
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-6.0.1.tgz#808007e4e5867decb0ab6ab2f928fbdb5a596db4"
   dependencies:
     debug "4"
 
@@ -1532,8 +1532,8 @@ code-point-at@^1.0.0:
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
 codecov@^3.0.0:
-  version "3.6.5"
-  resolved "https://registry.yarnpkg.com/codecov/-/codecov-3.6.5.tgz#d73ce62e8a021f5249f54b073e6f2d6a513f172a"
+  version "3.7.1"
+  resolved "https://registry.yarnpkg.com/codecov/-/codecov-3.7.1.tgz#434cb8d55f18ef01672e5739d3d266696bebc202"
   dependencies:
     argv "0.0.2"
     ignore-walk "3.0.3"