diff --git a/pkgs/python-packages.nix b/pkgs/python-packages.nix
--- a/pkgs/python-packages.nix
+++ b/pkgs/python-packages.nix
@@ -505,11 +505,11 @@ self: super: {
     };
   };
   "pygments" = super.buildPythonPackage {
-    name = "pygments-2.3.0";
+    name = "pygments-2.3.1";
     doCheck = false;
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/63/a2/91c31c4831853dedca2a08a0f94d788fc26a48f7281c99a303769ad2721b/Pygments-2.3.0.tar.gz";
-      sha256 = "1z34ms51dh4jq4h3cizp7vd1dmsxcbvffkjsd2xxfav22nn6lrl2";
+      url = "https://files.pythonhosted.org/packages/64/69/413708eaf3a64a6abb8972644e0f20891a55e621c6759e2c3f3891e05d63/Pygments-2.3.1.tar.gz";
+      sha256 = "0ji87g09jph8jqcvclgb02qvxasdnr9pzvk90rl66d90yqcxmyjz";
     };
     meta = {
       license = [ pkgs.lib.licenses.bsdOriginal ];
diff --git a/requirements.txt b/requirements.txt
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ psutil==5.4.8
 pyramid==1.10.1
 pyramid-mako==1.0.2
 
-pygments==2.3.0
+pygments==2.3.1
 pathlib2==2.3.3
 repoze.lru==0.7
 simplejson==3.11.1