diff --git a/Gemfile.lock b/Gemfile.lock
index 518ba08..2b66b75 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,7 +64,7 @@ GEM
       xpath (~> 2.0)
     celluloid (0.16.0)
       timers (~> 4.0.0)
-    childprocess (0.5.3)
+    childprocess (0.5.4)
       ffi (~> 1.0, >= 1.0.11)
     cliver (0.3.2)
     coderay (1.1.0)