diff --git a/Charts-swift4/Gemfile.lock b/Charts-swift4/Gemfile.lock
old mode 100755
new mode 100644
index 8cc5c06..adc4c5c
--- a/Charts-swift4/Gemfile.lock
+++ b/Charts-swift4/Gemfile.lock
@@ -55,8 +55,8 @@ GEM
     netrc (0.7.8)
     rake (12.0.0)
     rouge (1.11.1)
-    thread_safe (0.3.5)
-    tzinfo (1.2.2)
+    thread_safe (0.3.6)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     xcodeproj (1.4.2)
       CFPropertyList (~> 2.3.3)