diff --git a/pkgs/tools/networking/mitmproxy/tornado-4.6.patch b/pkgs/tools/networking/mitmproxy/tornado-4.6.patch
deleted file mode 100644
index 879b8a4c3794..000000000000
--- a/pkgs/tools/networking/mitmproxy/tornado-4.6.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- mitmproxy-v2.0.2-src.org/setup.py	2017-08-28 07:31:51.727424688 +0100
-+++ mitmproxy-v2.0.2-src/setup.py	2017-08-28 07:35:55.608919302 +0100
-@@ -78,7 +78,7 @@
-         "pyperclip>=1.5.22, <1.6",
-         "requests>=2.9.1, <3",
-         "ruamel.yaml>=0.13.2, <0.14",
--        "tornado>=4.3, <4.5",
-+        "tornado>=4.3, <4.6",
-         "urwid>=1.3.1, <1.4",
-         "watchdog>=0.8.3, <0.9",
-         "brotlipy>=0.5.1, <0.7",