diff --git a/5pkgs/devpi/default.nix b/5pkgs/devpi/default.nix
index 3ccc35c..020b2fd 100644
--- a/5pkgs/devpi/default.nix
+++ b/5pkgs/devpi/default.nix
@@ -1,33 +1,43 @@
 { pkgs ? import <nixpkgs> {} }:
 with pkgs.stdenv.lib;
 let
-  execnet14 = pkgs.python3Packages.buildPythonPackage rec {
-    name = "execnet-1.4.1";
+
+  readme-renderer = pkgs.python3Packages.buildPythonPackage rec {
+    name = "readme_renderer";
+    version = "0.7.0";
 
     src = pkgs.fetchurl {
-      url = "https://pypi.python.org/packages/source/e/execnet/${name}.tar.gz";
-      sha256 = "1rpk1vyclhg911p3hql0m0nrpq7q7mysxnaaw6vs29cpa6kx8vgn";
+      url = "mirror://pypi/r/readme_renderer/readme_renderer-${version}.tar.gz";
+      sha256 = "1kh9ggff8m9sdgr631vf2n4k97h4z1871vay6qgk3ydy3rd856ak";
     };
-    doCheck = false; # http://prism:8010/builders/build-all/builds/177/steps/build-vbob/logs/stdio
-    propagatedBuildInputs = with pkgs.python3Packages;
-      [ setuptools_scm apipkg ];
-    meta = {
-      description = "rapid multi-Python deployment";
-      license = licenses.gpl2;
-    };
-  };
+    buildInputs = with pkgs.python3Packages; [ pytest ];
+    propagatedBuildInputs = with pkgs.python3Packages; [ docutils bleach pygments ];
 
+  };
+  devpi-client = pkgs.python3Packages.buildPythonPackage rec {
+    name = "devpi-client";
+    version = "2.7.0";
+
+    src = pkgs.fetchurl {
+      url = "mirror://pypi/d/devpi-client/devpi-client-${version}.tar.gz";
+      sha256 = "0z7vaf0a66n82mz0vx122pbynjvkhp2mjf9lskgyv09y3bxzzpj3";
+    };
+    patches = [ ./py3-fix-encoding.patch ];
+    buildInputs = with pkgs.python3Packages; [ tox check-manifest pkginfo ];
+    propagatedBuildInputs = with pkgs.python3Packages; [ devpi-common py ];
+  };
   devpi-web = pkgs.python3Packages.buildPythonPackage rec {
     name = "devpi-web";
-    version = "3.0.0";
+    version = "3.1.1";
+
 
     src = pkgs.fetchurl {
-      url = "https://pypi.python.org/packages/source/d/devpi-web/devpi-web-${version}.tar.gz";
-      sha256 = "156abxyhj17a8cg38hpyr31qkjb61mb2kggsxij4p4xvy9jwkbwi";
+      url = "mirror://pypi/d/devpi-web/devpi-web-${version}.tar.gz";
+      sha256 = "0bvqv52jmasfm4sdyccwsgvk9a663d3grj7zjw8r9x7xm7l3svqv";
     };
 
     propagatedBuildInputs = with pkgs.python3Packages;
-      [ devpi-server pyramid_chameleon beautifulsoup4 Whoosh defusedxml ];
+      [ devpi-server pyramid_chameleon beautifulsoup4 defusedxml readme-renderer ];
 
     meta = {
       homepage = https://bitbucket.org/hpk42/devpi;
@@ -36,9 +46,29 @@ let
       maintainers = with maintainers; [ makefu ];
     };
   };
+
+  devpi-common-3 = pkgs.python3Packages.buildPythonPackage rec {
+    name = "devpi-common";
+    version = "3.0.1";
+
+    src = pkgs.fetchurl {
+      url = "mirror://pypi/d/devpi-common/devpi-common-${version}.tar.gz";
+      sha256 = "0l3a7iyk596x6pvzg7604lzzi012qszr804fqn6f517zcy1xz23j";
+    };
+
+    propagatedBuildInputs = with pkgs.python3Packages; [ requests2 py ];
+
+    meta = {
+      homepage = https://bitbucket.org/hpk42/devpi;
+      description = "Utilities jointly used by devpi-server and devpi-client";
+      license = licenses.mit;
+      maintainers = with maintainers; [ lewo makefu ];
+    };
+  };
+
   devpi-server = pkgs.python3Packages.buildPythonPackage rec {
     name = "devpi-server";
-    version = "3.0.2";
+    version = "4.1.1";
 
     # original postFixup adds "import sys; sys.argv[0] = 'devpi-server'" to
     # `.devpi-server-wrapped` which
@@ -46,12 +76,12 @@ let
     postFixup = "";
 
     src = pkgs.fetchurl {
-      url = "https://pypi.python.org/packages/source/d/devpi-server/devpi-server-${version}.tar.gz";
-      sha256 = "14r1024i3x2pb72khyzvi56sh9smpdswmrbc88xvjxnalmzfn99d";
+      url = "mirror://pypi/d/devpi-server/devpi-server-${version}.tar.gz";
+      sha256 = "1icbn1nw6w0sc5150fr69rlhs0j5ldnnxfzl2qabq2wi0dbar8hf";
     };
 
     propagatedBuildInputs = with pkgs.python3Packages;
-      [ devpi-common execnet14 itsdangerous pluggy waitress pyramid ];
+      [ devpi-common-3 execnet itsdangerous pluggy waitress pyramid ];
     buildInputs = with pkgs.python3Packages; [ pytest beautifulsoup4 webtest ];
 
     meta = {
@@ -63,7 +93,7 @@ let
   };
 
 in {
-  inherit devpi-server;
+  inherit devpi-server devpi-client;
   devpi-web =  pkgs.python3.buildEnv.override {
       extraLibs = [ devpi-web devpi-server ];
     };
diff --git a/5pkgs/devpi/py3-fix-encoding.patch b/5pkgs/devpi/py3-fix-encoding.patch
new file mode 100644
index 0000000..e5f9406
--- /dev/null
+++ b/5pkgs/devpi/py3-fix-encoding.patch
@@ -0,0 +1,11 @@
++++ a/setup.py
+--- b/setup.py
+@@ -26,7 +26,7 @@
+ 
+ 
+ def get_changelog():
+-    text = open(os.path.join(here, 'CHANGELOG')).read()
++    text = open(os.path.join(here, 'CHANGELOG'),encoding='utf-8').read()
+     header_matches = list(re.finditer('^-+$', text, re.MULTILINE))
+     # until fifth header
+     text = text[:header_matches[5].start()]