diff --git a/pkgs/development/python-modules/pydicom/default.nix b/pkgs/development/python-modules/pydicom/default.nix
index 339775c2f54f..6f4e4c97fd1c 100644
--- a/pkgs/development/python-modules/pydicom/default.nix
+++ b/pkgs/development/python-modules/pydicom/default.nix
@@ -8,12 +8,12 @@
 }:
 
 buildPythonPackage rec {
-  version = "1.4.1";
+  version = "1.4.2";
   pname = "pydicom";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0ki4736h6mp77733rsrwicl8pyig39idywzcmwvw3nzi2r1yc7w8";
+    sha256 = "1483hv74fhfk4q18r4rda7yixqqdxrd1djzp3492s81ykxd4k24l";
   };
 
   propagatedBuildInputs = [ numpy pillow ];