diff --git a/Gemfile.lock b/Gemfile.lock
index 0abf00bc9..e5ee87842 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -114,7 +114,7 @@ GEM
     after_commit_everywhere (1.5.0)
       activerecord (>= 4.2)
       activesupport
-    appsignal (4.2.1)
+    appsignal (4.2.3)
       logger
       rack
     ast (2.4.2)