diff --git a/Gemfile.lock b/Gemfile.lock
index 236cf87..be52fc7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -237,7 +237,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rdoc (6.6.2)
+    rdoc (6.6.3.1)
       psych (>= 4.0.0)
     regexp_parser (2.9.0)
     reline (0.4.2)
@@ -271,7 +271,7 @@ GEM
       actionpack (>= 5.2)
       activesupport (>= 5.2)
       sprockets (>= 3.0.0)
-    stringio (3.1.0)
+    stringio (3.1.1)
     thor (1.3.0)
     tilt (2.3.0)
     timeout (0.4.1)