diff --git a/src/Gemfile.lock b/src/Gemfile.lock
index 276a5e9..199d529 100644
--- a/src/Gemfile.lock
+++ b/src/Gemfile.lock
@@ -37,7 +37,8 @@ GEM
       ast (~> 2.4.1)
     rainbow (3.1.1)
     regexp_parser (2.6.1)
-    rexml (3.2.5)
+    rexml (3.3.3)
+      strscan
     rotp (6.2.2)
     rqrcode (2.1.2)
       chunky_png (~> 1.0)
@@ -61,6 +62,7 @@ GEM
       tilt (>= 2.0.6, < 2.1)
     sqlite3 (1.6.0-x86_64-darwin)
     sqlite3 (1.6.0-x86_64-linux)
+    strscan (3.1.0)
     temple (0.8.2)
     tilt (2.0.11)
     timeout (0.3.1)