diff --git a/pkgs/development/python-modules/shiny/default.nix b/pkgs/development/python-modules/shiny/default.nix
index 8c0809a2da3e..474666efcbd0 100644
--- a/pkgs/development/python-modules/shiny/default.nix
+++ b/pkgs/development/python-modules/shiny/default.nix
@@ -47,14 +47,14 @@
 
 buildPythonPackage rec {
   pname = "shiny";
-  version = "1.3.0";
+  version = "1.4.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "posit-dev";
     repo = "py-shiny";
     tag = "v${version}";
-    hash = "sha256-YCPHjelGPYYo23Vzxy5+8Kn9fVlSZy1Qva7zp93+nzg=";
+    hash = "sha256-SsMZ+aiGFtP6roTiuBZWnHqPso3ZiWLgBToaTLiC2ko=";
   };
 
   build-system = [
@@ -123,7 +123,7 @@ buildPythonPackage rec {
   meta = {
     description = "Build fast, beautiful web applications in Python";
     homepage = "https://shiny.posit.co/py";
-    changelog = "https://github.com/posit-dev/py-shiny/blob/v${version}/CHANGELOG.md";
+    changelog = "https://github.com/posit-dev/py-shiny/blob/${src.tag}/CHANGELOG.md";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ sigmanificient ];
   };