diff --git a/Gemfile.lock b/Gemfile.lock
index f76c0ed..48d95f0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -147,7 +147,8 @@ GEM
     rake (13.1.0)
     rchardet (1.8.0)
     redcarpet (3.6.0)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rouge (4.2.0)
     ruby-macho (2.5.1)
     ruby2_keywords (0.0.5)
@@ -159,6 +160,7 @@ GEM
     sqlite3 (1.7.0)
       mini_portile2 (~> 2.8.0)
     sqlite3 (1.7.0-x86_64-linux)
+    strscan (3.1.0)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     thor (1.0.1)