diff --git a/Gemfile.lock b/Gemfile.lock
index e5bcdd3..501c7e8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -80,7 +80,7 @@ GEM
       method_source (~> 1.0)
     public_suffix (5.0.3)
     racc (1.7.1)
-    rack (2.2.9)
+    rack (2.2.19)
     rack-protection (3.0.6)
       rack
     rack-test (2.1.0)
@@ -91,8 +91,7 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     regexp_parser (2.8.1)
-    rexml (3.2.8)
-      strscan (>= 3.0.9)
+    rexml (3.4.2)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)
@@ -141,7 +140,6 @@ GEM
     snaky_hash (2.0.1)
       hashie
       version_gem (~> 1.1, >= 1.1.1)
-    strscan (3.1.0)
     thin (1.8.2)
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)