diff --git a/pkgs/development/python-modules/pyatmo/default.nix b/pkgs/development/python-modules/pyatmo/default.nix
index afa5f0c378b1..f448942ae01d 100644
--- a/pkgs/development/python-modules/pyatmo/default.nix
+++ b/pkgs/development/python-modules/pyatmo/default.nix
@@ -16,7 +16,7 @@
 
 buildPythonPackage rec {
   pname = "pyatmo";
-  version = "7.3.0";
+  version = "7.4.0";
   format = "pyproject";
 
   disabled = pythonOlder "3.8";
@@ -25,7 +25,7 @@ buildPythonPackage rec {
     owner = "jabesq";
     repo = "pyatmo";
     rev = "refs/tags/v${version}";
-    sha256 = "sha256-3NgAsXMdt4FsE30oxeTfunpP2e+iqLFZkhMJbc5jVGw=";
+    sha256 = "sha256-0AgmH0cxXPUBzC30HyX68WsSyYsDcPaVQHLOIsZbHzI=";
   };
 
   SETUPTOOLS_SCM_PRETEND_VERSION = version;