diff --git a/Formula/krakend.rb b/Formula/krakend.rb
index 672ee10c56..5e940d448a 100644
--- a/Formula/krakend.rb
+++ b/Formula/krakend.rb
@@ -1,8 +1,8 @@
 class Krakend < Formula
   desc "Ultra-High performance API Gateway built in Go"
   homepage "https://www.krakend.io/"
-  url "https://github.com/devopsfaith/krakend-ce/archive/0.8.0.tar.gz"
-  sha256 "8194f5c459732a35ee05154e388f911a4ebab02e801e735c2803f4100c1e53f0"
+  url "https://github.com/devopsfaith/krakend-ce/archive/0.9.0.tar.gz"
+  sha256 "8d6938af3483c909b0762ab44998f09812632081045bebc33b707c85b3985a00"
 
   bottle do
     cellar :any_skip_relocation
@@ -39,7 +39,7 @@ class Krakend < Formula
         }
       }
     EOS
-    assert_match "Unsupported version", shell_output("#{bin}/krakend check -c krakend_unsupported_version.json 2>&1")
+    assert_match "Unsupported version", shell_output("#{bin}/krakend check -c krakend_unsupported_version.json 2>&1", 1)
 
     (testpath/"krakend_bad_file.json").write <<~EOS
       {
@@ -47,7 +47,7 @@ class Krakend < Formula
         "bad": file
       }
     EOS
-    assert_match "ERROR", shell_output("#{bin}/krakend check -c krakend_bad_file.json 2>&1")
+    assert_match "ERROR", shell_output("#{bin}/krakend check -c krakend_bad_file.json 2>&1", 1)
 
     (testpath/"krakend.json").write <<~EOS
       {