diff --git a/packages/app-harness/Gemfile.lock b/packages/app-harness/Gemfile.lock
index 146c08cf7..f5cc5fbd2 100644
--- a/packages/app-harness/Gemfile.lock
+++ b/packages/app-harness/Gemfile.lock
@@ -73,10 +73,8 @@ GEM
     nap (1.1.0)
     netrc (0.11.0)
     public_suffix (4.0.7)
-    rexml (3.3.6)
-      strscan
+    rexml (3.3.9)
     ruby-macho (2.5.1)
-    strscan (3.1.0)
     typhoeus (1.4.1)
       ethon (>= 0.9.0)
     tzinfo (2.0.6)
diff --git a/packages/template-starter/Gemfile.lock b/packages/template-starter/Gemfile.lock
index e1914c9e0..8b2aeffb0 100644
--- a/packages/template-starter/Gemfile.lock
+++ b/packages/template-starter/Gemfile.lock
@@ -71,10 +71,8 @@ GEM
     nap (1.1.0)
     netrc (0.11.0)
     public_suffix (4.0.7)
-    rexml (3.3.6)
-      strscan
+    rexml (3.3.9)
     ruby-macho (2.5.1)
-    strscan (3.1.0)
     typhoeus (1.4.1)
       ethon (>= 0.9.0)
     tzinfo (2.0.6)