diff --git a/src/comment/Gemfile.lock b/src/comment/Gemfile.lock
old mode 100755
new mode 100644
index e095838..dfaa6db
--- a/src/comment/Gemfile.lock
+++ b/src/comment/Gemfile.lock
@@ -3,6 +3,7 @@ GEM
   specs:
     bson (4.3.0)
     bson_ext (1.5.1)
+    concurrent-ruby (1.1.10)
     et-orbi (1.1.6)
       tzinfo
     fugit (1.1.6)
@@ -26,10 +27,9 @@ GEM
       rack (~> 2.0)
       rack-protection (= 2.0.4)
       tilt (~> 2.0)
-    thread_safe (0.3.6)
     tilt (2.0.9)
-    tzinfo (1.2.5)
-      thread_safe (~> 0.1)
+    tzinfo (2.0.5)
+      concurrent-ruby (~> 1.0)
     tzinfo-data (1.2018.7)
       tzinfo (>= 1.0.0)