diff --git a/Gemfile.lock b/Gemfile.lock
index 839c08ef7..4a96cc154 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -45,7 +45,6 @@ GEM
     curb (1.0.1)
     daemons (1.4.1)
     diff-lcs (1.5.0)
-    digest (3.1.0)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
     em-websocket (0.5.3)
@@ -106,10 +105,8 @@ GEM
     naught (1.1.0)
     net-protocol (0.1.3)
       timeout
-    net-smtp (0.3.1)
-      digest
+    net-smtp (0.3.2)
       net-protocol
-      timeout
     netrc (0.11.0)
     nio4r (2.5.8)
     nokogiri (1.13.8-x86_64-linux)