diff --git a/pkgs/by-name/ch/charls/package.nix b/pkgs/by-name/ch/charls/package.nix
index d62da5e9670f..d00e450b37f5 100644
--- a/pkgs/by-name/ch/charls/package.nix
+++ b/pkgs/by-name/ch/charls/package.nix
@@ -7,13 +7,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "charls";
-  version = "2.4.2";
+  version = "2.4.3";
 
   src = fetchFromGitHub {
     owner = "team-charls";
     repo = "charls";
     tag = finalAttrs.version;
-    hash = "sha256-c1wrk6JLcAH7TFPwjARlggaKXrAsLWyUQF/3WHlqoqg=";
+    hash = "sha256-U21SdVRTPNI5BFGOyM3Y/ByKDP6ZI2g/BtAJYXH5Dv4=";
   };
 
   postPatch = ''
diff --git a/pkgs/development/python-modules/nexusformat/default.nix b/pkgs/development/python-modules/nexusformat/default.nix
index b9c9ffdc7117..8d218dd2d041 100644
--- a/pkgs/development/python-modules/nexusformat/default.nix
+++ b/pkgs/development/python-modules/nexusformat/default.nix
@@ -2,10 +2,12 @@
   lib,
   buildPythonPackage,
   fetchPypi,
+  colored,
   h5py,
   hdf5plugin,
   numpy,
   pytestCheckHook,
+  python-dateutil,
   scipy,
   setuptools-scm,
   setuptools,
@@ -27,9 +29,11 @@ buildPythonPackage rec {
   ];
 
   dependencies = [
+    colored
     h5py
     hdf5plugin
     numpy
+    python-dateutil
     scipy
   ];