diff --git a/Gemfile.lock b/Gemfile.lock
index fbb9e20..868c9fc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -199,13 +199,12 @@ GEM
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.9)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     tzinfo-data (1.2019.2)
       tzinfo (>= 1.0.0)
     uglifier (4.1.20)
       execjs (>= 0.3.0, < 3)
-    wdm (0.1.1)
     web-console (3.7.0)
       actionview (>= 5.0)
       activemodel (>= 5.0)
@@ -244,7 +243,6 @@ DEPENDENCIES
   spring-watcher-listen (~> 2.0.0)
   tzinfo-data
   uglifier (>= 1.3.0)
-  wdm (>= 0.1.0)
   web-console (>= 3.3.0)
 
 RUBY VERSION