diff --git a/Gemfile.lock b/Gemfile.lock
index 54f3be05..b308dcb3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -85,7 +85,7 @@ GEM
       method_source (~> 1.0)
     pry-nav (1.0.0)
       pry (>= 0.9.10, < 0.15)
-    psych (5.2.1)
+    psych (5.2.2)
       date
       stringio
     racc (1.8.1)