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-2.3.1";
+    name = "pygments-2.4.2";
     doCheck = false;
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/64/69/413708eaf3a64a6abb8972644e0f20891a55e621c6759e2c3f3891e05d63/Pygments-2.3.1.tar.gz";
-      sha256 = "0ji87g09jph8jqcvclgb02qvxasdnr9pzvk90rl66d90yqcxmyjz";
+      url = "https://files.pythonhosted.org/packages/7e/ae/26808275fc76bf2832deb10d3a3ed3107bc4de01b85dcccbe525f2cd6d1e/Pygments-2.4.2.tar.gz";
+      sha256 = "15v2sqm5g12bqa0c7wikfh9ck2nl97ayizy1hpqhmws5gqalq748";
     };
     meta = {
       license = [ pkgs.lib.licenses.bsdOriginal ];
diff --git a/requirements_pinned.txt b/requirements_pinned.txt
--- a/requirements_pinned.txt
+++ b/requirements_pinned.txt
@@ -4,7 +4,7 @@ atomicwrites==1.2.1
 attrs==18.2.0
 hupper==1.6.1
 pathlib2==2.3.3
-pygments==2.3.1
+pygments==2.4.2
 psutil==5.5.1
 pluggy==0.11.0
 scandir==1.10.0