diff --git a/Formula/s3ql.rb b/Formula/s3ql.rb
index dbc91f8eb544f..f3e01f87056c3 100644
--- a/Formula/s3ql.rb
+++ b/Formula/s3ql.rb
@@ -6,7 +6,7 @@ class S3ql < Formula
   url "https://github.com/s3ql/s3ql/releases/download/release-3.3.2/s3ql-3.3.2.tar.bz2"
   sha256 "72b310052752e281a17468a8bbe9006db7fa1f0184b83b38c5667239dfd59e73"
   license "GPL-3.0"
-  revision 1
+  revision 2
 
   bottle do
     cellar :any
@@ -44,8 +44,8 @@ class S3ql < 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 "chardet" do