diff --git a/Gemfile.lock b/Gemfile.lock
index 7f1810f8..74786d9d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -565,9 +565,8 @@ GEM
       actionpack (>= 5.2)
       activesupport (>= 5.2)
       sprockets (>= 3.0.0)
-    sshkit (1.22.2)
+    sshkit (1.23.0)
       base64
-      mutex_m
       net-scp (>= 1.1.2)
       net-sftp (>= 2.1.2)
       net-ssh (>= 2.8.0)