diff --git a/Gemfile.lock b/Gemfile.lock
index 9c40a540c..cc8e9e2af 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -497,7 +497,7 @@ GEM
       rubocop (~> 0.87)
       rubocop-ast (>= 0.7.1)
     ruby-progressbar (1.11.0)
-    ruby-units (2.3.1)
+    ruby-units (2.3.2)
     ruby-vips (2.0.17)
       ffi (~> 1.9)
     ruby2_keywords (0.0.2)