diff --git a/Formula/flintrock.rb b/Formula/flintrock.rb
index b2c5f30e4011b..350918884f864 100644
--- a/Formula/flintrock.rb
+++ b/Formula/flintrock.rb
@@ -6,7 +6,7 @@ class Flintrock < Formula
   url "https://files.pythonhosted.org/packages/e6/18/3b45899e69e6ee24928f8c975b6bf575918029a19fc097de5d4ccbf6e3e7/Flintrock-1.0.0.tar.gz"
   sha256 "29635ba045ee4b966094d40ddadb0b2298ab0e3495fddf05a9a8b1060f6e4776"
   license "Apache-2.0"
-  revision 1
+  revision 2
 
   livecheck do
     url :stable
@@ -43,8 +43,8 @@ class Flintrock < Formula
   end
 
   resource "cffi" do
-    url "https://files.pythonhosted.org/packages/05/54/3324b0c46340c31b909fcec598696aaec7ddc8c18a63f2db352562d3354c/cffi-1.14.0.tar.gz"
-    sha256 "2d384f4a127a15ba701207f7639d94106693b6cd64173d6c8988e2c25f3ac2b6"
+    url "https://files.pythonhosted.org/packages/66/6a/98e023b3d11537a5521902ac6b50db470c826c682be6a8c661549cb7717a/cffi-1.14.4.tar.gz"
+    sha256 "1a465cbe98a7fd391d47dce4b8f7e5b921e6cd805ef421d04f5f66ba8f06086c"
   end
 
   resource "click" do