diff --git a/Gemfile.lock b/Gemfile.lock
index a612003f..17f2615b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,7 +17,7 @@ GEM
     addressable (2.8.7)
       public_suffix (>= 2.0.2, < 7.0)
     afm (0.2.2)
-    async (2.17.0)
+    async (2.18.0)
       console (~> 1.26)
       fiber-annotation
       io-event (~> 1.6, >= 1.6.5)
@@ -99,7 +99,7 @@ GEM
       concurrent-ruby (~> 1.0)
     io-event (1.7.3)
     jmespath (1.6.2)
-    json (2.7.4)
+    json (2.7.5)
     kramdown (2.4.0)
       rexml
     listen (3.9.0)