diff --git a/pkgs/python-packages.nix b/pkgs/python-packages.nix
--- a/pkgs/python-packages.nix
+++ b/pkgs/python-packages.nix
@@ -77,11 +77,11 @@ self: super: {
     };
   };
   "coverage" = super.buildPythonPackage {
-    name = "coverage-4.5.1";
+    name = "coverage-4.5.3";
     doCheck = false;
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/35/fe/e7df7289d717426093c68d156e0fd9117c8f4872b6588e8a8928a0f68424/coverage-4.5.1.tar.gz";
-      sha256 = "1wbrzpxka3xd4nmmkc6q0ir343d91kymwsm8pbmwa0d2a7q4ir2n";
+      url = "https://files.pythonhosted.org/packages/82/70/2280b5b29a0352519bb95ab0ef1ea942d40466ca71c53a2085bdeff7b0eb/coverage-4.5.3.tar.gz";
+      sha256 = "02f6m073qdispn96rc616hg0rnmw1pgqzw3bgxwiwza4zf9hirlx";
     };
     meta = {
       license = [ pkgs.lib.licenses.asl20 ];
diff --git a/requirements_test.txt b/requirements_test.txt
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -10,7 +10,7 @@ gprof2dot==2017.9.19
 
 mock==1.0.1
 cov-core==1.15.0
-coverage==4.5.1
+coverage==4.5.3
 
 webtest==2.0.33
 beautifulsoup4==4.6.3