diff --git a/Gemfile.lock b/Gemfile.lock
index 37d1d2a..5fa417e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -35,7 +35,7 @@ GEM
     concurrent-ruby (1.3.7)
     connection_pool (3.0.2)
     csv (3.3.5)
-    dnsruby (1.73.1)
+    dnsruby (1.74.0)
       base64 (>= 0.2)
       logger (~> 1.6)
       simpleidn (~> 0.2.1)