diff --git a/Gemfile.lock b/Gemfile.lock
index 636eb9dbb6..65054e0bc1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,7 +10,7 @@ GEM
       semi_semantic (~> 1.2.0)
     byebug (11.1.3)
     coderay (1.1.3)
-    concurrent-ruby (1.1.9)
+    concurrent-ruby (1.2.0)
     diff-lcs (1.5.0)
     i18n (1.9.1)
       concurrent-ruby (~> 1.0)
@@ -42,7 +42,7 @@ GEM
       rspec-support (~> 3.10.0)
     rspec-support (3.10.3)
     semi_semantic (1.2.0)
-    tzinfo (2.0.4)
+    tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
 
 PLATFORMS