diff --git a/Gemfile.lock b/Gemfile.lock
index fcc48de4..bb761de9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -115,7 +115,7 @@ GEM
     descendants_tracker (0.0.4)
       thread_safe (~> 0.3, >= 0.3.1)
     diff-lcs (1.5.0)
-    digest (3.1.0)
+    digest (3.1.1)
     dotenv (2.7.6)
     dotenv-rails (2.7.6)
       dotenv (= 2.7.6)
@@ -168,7 +168,6 @@ GEM
     i18n (1.10.0)
       concurrent-ruby (~> 1.0)
     ice_nine (0.11.2)
-    io-wait (0.2.1)
     jwt (2.3.0)
     listen (3.7.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
@@ -190,12 +189,9 @@ GEM
       digest
       net-protocol
       strscan
-    net-pop (0.1.1)
-      digest
+    net-pop (0.1.2)
       net-protocol
-      timeout
-    net-protocol (0.1.2)
-      io-wait
+    net-protocol (0.1.3)
       timeout
     net-smtp (0.3.1)
       digest