diff --git a/Gemfile.lock b/Gemfile.lock
index 2d2988a594..fe2a924547 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -566,8 +566,7 @@ GEM
     responders (3.0.1)
       actionpack (>= 5.0)
       railties (>= 5.0)
-    rexml (3.2.9)
-      strscan
+    rexml (3.3.7)
     rotp (6.2.0)
     rpam2 (4.0.2)
     rqrcode (2.1.2)
@@ -682,7 +681,6 @@ GEM
       redlock (~> 1.0)
     strong_migrations (0.7.9)
       activerecord (>= 5)
-    strscan (3.1.0)
     swd (1.3.0)
       activesupport (>= 3)
       attr_required (>= 0.0.5)