diff --git a/Gemfile.lock b/Gemfile.lock
index 30f48fcf4..7a8ead5f7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -418,7 +418,7 @@ GEM
     pghero (2.6.0)
       activerecord (>= 5)
     pkg-config (1.4.1)
-    premailer (1.11.1)
+    premailer (1.12.1)
       addressable
       css_parser (>= 1.6.0)
       htmlentities (>= 4.0.0)