diff --git a/pkgs/development/python-modules/pdfminer_six/default.nix b/pkgs/development/python-modules/pdfminer_six/default.nix
index 71d439d4c20..4c0086869f7 100644
--- a/pkgs/development/python-modules/pdfminer_six/default.nix
+++ b/pkgs/development/python-modules/pdfminer_six/default.nix
@@ -1,18 +1,18 @@
-{ stdenv, buildPythonPackage, python, fetchFromGitHub, six, pycryptodome, chardet, nose, pytest }:
+{ stdenv, buildPythonPackage, python, fetchFromGitHub, six, pycryptodome, chardet, nose, pytest, sortedcontainers }:
 
 buildPythonPackage rec {
   pname = "pdfminer_six";
-  version = "20170720";
+  version = "20181108";
 
   src = fetchFromGitHub {
     owner = "pdfminer";
     repo = "pdfminer.six";
     rev = "${version}";
-    sha256 = "0vax5k0a8qn8x86ybpzqydk7x3hajsk8b6xf3y610j19mgag6wvs";
+    sha256 = "1v8pcx43fgidv1g54s92k85anvcss08blkhm4yi1hn1ybl0mmw6c";
   };
 
-  propagatedBuildInputs = [ six pycryptodome chardet ];
-  
+  propagatedBuildInputs = [ six pycryptodome chardet sortedcontainers ];
+
   checkInputs = [ nose pytest ];
   checkPhase = ''
     ${python.interpreter} -m pytest