1 files changed, 2 insertions, 2 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/mitmproxy/default.nix b/nixpkgs/pkgs/development/python-modules/mitmproxy/default.nix
index 4f31c512197d..bc5835fac539 100644
--- a/nixpkgs/pkgs/development/python-modules/mitmproxy/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/mitmproxy/default.nix
@@ -24,7 +24,7 @@
 , pyopenssl
 , pyparsing
 , pyperclip
-, ruamel_yaml
+, ruamel-yaml
 , setuptools
 , sortedcontainers
 , tornado
@@ -78,7 +78,7 @@ buildPythonPackage rec {
     pyopenssl
     pyparsing
     pyperclip
-    ruamel_yaml
+    ruamel-yaml
     sortedcontainers
     tornado
     urwid