diff --git a/Gemfile.lock b/Gemfile.lock
index 8f84f98..1d24de5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -112,9 +112,8 @@ GEM
     sawyer (0.9.2)
       addressable (>= 2.3.5)
       faraday (>= 0.17.3, < 3)
-    slack-ruby-client (0.14.6)
-      activesupport
-      faraday (>= 0.9)
+    slack-ruby-client (0.17.0)
+      faraday (>= 1.0)
       faraday_middleware
       gli
       hashie