diff --git a/Gemfile.lock b/Gemfile.lock
index 15133f9..c5a012f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -188,7 +188,7 @@ GEM
       websocket-driver (>= 0.2.0)
     powder (0.4.0)
       thor (>= 0.11.5)
-    power_assert (1.1.4)
+    power_assert (1.1.5)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)