diff --git a/Gemfile.lock b/Gemfile.lock
index 1f5e54ab8a3..a6ac15c138d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -184,7 +184,7 @@ GEM
       in_threads (~> 1.3)
       progress (~> 3.0, >= 3.0.1)
     image_size (3.0.1)
-    in_threads (1.5.4)
+    in_threads (1.6.0)
     ipaddr (1.2.4)
     jmespath (1.5.0)
     jquery-rails (4.4.0)