diff --git a/Gemfile.lock b/Gemfile.lock
index c2d0e6862..bcc96291f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -372,7 +372,7 @@ GEM
     pry (0.14.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    psych (5.2.2)
+    psych (5.2.3)
       date
       stringio
     public_suffix (6.0.1)
@@ -557,7 +557,7 @@ GEM
     standard-performance (1.6.0)
       lint_roller (~> 1.1)
       rubocop-performance (~> 1.23.0)
-    stringio (3.1.2)
+    stringio (3.1.5)
     terrapin (0.6.0)
       climate_control (>= 0.0.3, < 1.0)
     thor (1.3.2)