diff --git a/Gemfile.lock b/Gemfile.lock
index 7b7282b67..bcd94abaa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -297,7 +297,8 @@ GEM
       trailblazer-option (>= 0.1.1, < 0.2.0)
       uber (< 0.2.0)
     retriable (3.1.2)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rouge (2.0.7)
     ruby-macho (2.5.1)
     ruby2_keywords (0.0.5)
@@ -318,6 +319,7 @@ GEM
       naturally
     sqlite3 (1.7.3-arm64-darwin)
     sqlite3 (1.7.3-x86_64-linux)
+    strscan (3.1.0)
     synx (0.2.1)
       clamp (~> 0.6)
       colorize (~> 0.7)