diff --git a/rails/devtips/blog/Gemfile.lock b/rails/devtips/blog/Gemfile.lock
index cd741ac6..101708c1 100644
--- a/rails/devtips/blog/Gemfile.lock
+++ b/rails/devtips/blog/Gemfile.lock
@@ -60,14 +60,15 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.10)
     crass (1.0.5)
     erubi (1.6.1)
     execjs (2.7.0)
     ffi (1.9.18)
-    globalid (0.4.0)
-      activesupport (>= 4.2.0)
-    i18n (0.8.6)
+    globalid (1.0.1)
+      activesupport (>= 5.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
       multi_json (>= 1.2)
@@ -85,7 +86,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mini_portile2 (2.4.0)
-    minitest (5.10.2)
+    minitest (5.17.0)
     multi_json (1.12.1)
     nio4r (2.1.0)
     nokogiri (1.10.8)
@@ -163,7 +164,7 @@ GEM
     turbolinks (5.0.1)
       turbolinks-source (~> 5)
     turbolinks-source (5.0.3)
-    tzinfo (1.2.3)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)