diff --git a/yarn.lock b/yarn.lock
index d62f92e..bce15aa 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1130,13 +1130,9 @@ rxjs@^5.5.2:
   dependencies:
     symbol-observable "1.0.1"
 
-"semver@2 || 3 || 4 || 5":
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.4.1.tgz#e059c09d8571f0540823733433505d3a2f00b18e"
-
-semver@^5.5.0:
-  version "5.5.0"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
+"semver@2 || 3 || 4 || 5", semver@^5.5.0:
+  version "5.7.2"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.2.tgz#48d55db737c3287cd4835e17fa13feace1c41ef8"
 
 set-blocking@^2.0.0:
   version "2.0.0"