diff --git a/Week 01~05 The Missing Semester by MIT/missing-semester-master/Gemfile.lock b/Week 01~05 The Missing Semester by MIT/missing-semester-master/Gemfile.lock
index 3f6d244..883788a 100644
--- a/Week 01~05 The Missing Semester by MIT/missing-semester-master/Gemfile.lock	
+++ b/Week 01~05 The Missing Semester by MIT/missing-semester-master/Gemfile.lock	
@@ -233,7 +233,7 @@ GEM
     thread_safe (0.3.6)
     typhoeus (1.3.1)
       ethon (>= 0.9.0)
-    tzinfo (1.2.6)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unicode-display_width (1.6.0)
     zeitwerk (2.2.2)