diff --git a/Gemfile.lock b/Gemfile.lock
index f2eb651..28936bc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -54,7 +54,8 @@ GEM
     rainbow (3.1.1)
     rake (13.2.1)
     regexp_parser (2.9.0)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)
@@ -97,6 +98,7 @@ GEM
     ruby-progressbar (1.13.0)
     sqlite3 (1.7.3)
       mini_portile2 (~> 2.8.0)
+    strscan (3.1.0)
     thor (1.3.1)
     timeout (0.4.1)
     tzinfo (2.0.6)