diff --git a/db-migration/Gemfile.lock b/db-migration/Gemfile.lock
index 86257be..0e6f768 100644
--- a/db-migration/Gemfile.lock
+++ b/db-migration/Gemfile.lock
@@ -29,14 +29,16 @@ GEM
     arel (6.0.4)
     builder (3.2.3)
     byebug (8.2.5)
+    crass (1.0.5)
     erubis (2.7.0)
     i18n (0.8.6)
-    loofah (2.0.3)
+    loofah (2.3.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
-    mini_portile2 (2.2.0)
+    mini_portile2 (2.4.0)
     minitest (5.10.3)
-    nokogiri (1.8.0)
-      mini_portile2 (~> 2.2.0)
+    nokogiri (1.10.5)
+      mini_portile2 (~> 2.4.0)
     pg (0.21.0)
     rack (1.6.8)
     rack-protection (1.5.3)