diff --git a/ruby/example1/Gemfile.lock b/ruby/example1/Gemfile.lock
index 6851fa5..b6d8e36 100644
--- a/ruby/example1/Gemfile.lock
+++ b/ruby/example1/Gemfile.lock
@@ -74,7 +74,7 @@ GEM
     childprocess (1.0.1)
       rake (< 13.0)
     concurrent-ruby (1.1.5)
-    crass (1.0.4)
+    crass (1.0.6)
     erubi (1.8.0)
     ffi (1.11.1)
     globalid (0.4.2)
@@ -87,7 +87,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.3)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -95,16 +95,20 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     msgpack (1.3.1)
     nio4r (2.4.0)
-    nokogiri (1.10.4)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.10)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     public_suffix (3.1.1)
     puma (3.12.1)
+    racc (1.6.1)
     rack (2.0.7)
     rack-proxy (0.6.5)
       rack