diff --git a/Gemfile.lock b/Gemfile.lock
index 1688df9bf..203b2864f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,7 +3,7 @@ GEM
   specs:
     htmlentities (4.3.4)
     mini_portile2 (2.4.0)
-    nokogiri (1.10.4)
+    nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)
     optimist (3.0.0)
 
@@ -11,9 +11,9 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  htmlentities
-  nokogiri
-  optimist
+  htmlentities (~> 4.3)
+  nokogiri (~> 1.10)
+  optimist (~> 3.0)
 
 BUNDLED WITH
    2.0.2