diff --git a/Gemfile.lock b/Gemfile.lock
index ea07cb7..ba60504 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -92,9 +92,9 @@ GEM
       railties (>= 4.1.0, < 6.0)
       responders
       warden (~> 1.2.3)
-    devise_invitable (1.7.3)
-      actionmailer (>= 4.1.0)
-      devise (>= 4.0.0)
+    devise_invitable (2.0.0)
+      actionmailer (>= 5.0)
+      devise (>= 4.6)
     diff-lcs (1.3)
     domain_name (0.5.20180417)
       unf (>= 0.0.5, < 1.0.0)