diff --git a/pkgs/development/python-modules/locust/default.nix b/pkgs/development/python-modules/locust/default.nix
index 40b5d08429ec..d59ba37d5ac9 100644
--- a/pkgs/development/python-modules/locust/default.nix
+++ b/pkgs/development/python-modules/locust/default.nix
@@ -18,6 +18,7 @@
   locust-cloud,
   psutil,
   pyquery,
+  pytest,
   pyzmq,
   requests,
   retry,
@@ -27,14 +28,14 @@
 
 buildPythonPackage rec {
   pname = "locust";
-  version = "2.37.14";
+  version = "2.42.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "locustio";
     repo = "locust";
     tag = version;
-    hash = "sha256-16pMl72OIZlAi6jNx0qv0TO9RTm6O9CgiE84sndsEhc=";
+    hash = "sha256-yyG4HVti0BAcGWQHID799YfkCEIBmpTkUUm8QzXMivc=";
   };
 
   postPatch = ''
@@ -65,6 +66,7 @@ buildPythonPackage rec {
     "flask-login"
     # version 6.0.1 is listed as 0.0.1 in the dependency check and 0.0.1 is not >= 3.0.10
     "flask-cors"
+    "requests"
   ];
 
   dependencies = [
@@ -81,6 +83,7 @@ buildPythonPackage rec {
     requests
     tomli
     werkzeug
+    pytest
   ];
 
   pythonImportsCheck = [ "locust" ];
diff --git a/pkgs/development/python-modules/locust/webui.nix b/pkgs/development/python-modules/locust/webui.nix
index 964329564533..8905429828ef 100644
--- a/pkgs/development/python-modules/locust/webui.nix
+++ b/pkgs/development/python-modules/locust/webui.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation (finalAttrs: {
   missingHashes = ./missing-hashes.json;
   yarnOfflineCache = yarn-berry.fetchYarnBerryDeps {
     inherit (finalAttrs) src missingHashes;
-    hash = "sha256-FbKaU3wezuvcn98FOcUZbmoot/iHtmeStp4n0dNwFYA=";
+    hash = "sha256-dxt7rRA6kh0msjy3DAUvtj7LoE7vEaf4pmP2B95HoeY=";
   };
 
   nativeBuildInputs = [