diff --git a/Gemfile.lock b/Gemfile.lock
index f2c9b6bee..7d53f05b9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -407,7 +407,7 @@ GEM
     pg (1.2.3)
     pghero (2.7.2)
       activerecord (>= 5)
-    pkg-config (1.4.3)
+    pkg-config (1.4.4)
     posix-spawn (0.3.15)
     premailer (1.14.2)
       addressable