diff --git a/Gemfile.lock b/Gemfile.lock
index 9071d888..b8c129fe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -80,7 +80,8 @@ GEM
       racc (~> 1.4)
     public_suffix (4.0.7)
     racc (1.7.3)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rouge (2.0.7)
     ruby-macho (2.5.1)
     slather (2.7.4)
@@ -89,6 +90,7 @@ GEM
       clamp (~> 1.3)
       nokogiri (>= 1.13.9)
       xcodeproj (~> 1.21)
+    strscan (3.1.0)
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
     tzinfo (2.0.6)