diff --git a/packages/lit-analyzer/package.json b/packages/lit-analyzer/package.json
index ffb5ddbf..19ba7d36 100644
--- a/packages/lit-analyzer/package.json
+++ b/packages/lit-analyzer/package.json
@@ -47,9 +47,9 @@
 		"fast-glob": "^2.2.6",
 		"parse5": "5.1.0",
 		"ts-simple-type": "~1.0.5",
-		"vscode-css-languageservice": "4.3.0",
-		"vscode-html-languageservice": "3.1.0",
-		"vscode-web-custom-data": "^0.3.0",
+		"vscode-css-languageservice": "4.4.0",
+		"vscode-html-languageservice": "3.2.0",
+		"vscode-web-custom-data": "^0.3.6",
 		"web-component-analyzer": "~1.1.1"
 	},
 	"devDependencies": {
diff --git a/packages/lit-analyzer/src/test/rules/no-incompatible-type-binding.ts b/packages/lit-analyzer/src/test/rules/no-incompatible-type-binding.ts
index c7cc6226..cdc11444 100644
--- a/packages/lit-analyzer/src/test/rules/no-incompatible-type-binding.ts
+++ b/packages/lit-analyzer/src/test/rules/no-incompatible-type-binding.ts
@@ -177,6 +177,16 @@ tsTest("Attribute binding: Boolean type expression (false) is assignable to 'tru
 	hasNoDiagnostics(t, diagnostics);
 });
 
+tsTest("Attribute binding: Non boolean expression (dialog) is assignable to aria-haspopup", t => {
+	const { diagnostics } = getDiagnostics('html`<input aria-haspopup="dialog" />`');
+	hasNoDiagnostics(t, diagnostics);
+});
+
+tsTest("Attribute binding: Random string literal is not assignable to aria-haspopup", t => {
+	const { diagnostics } = getDiagnostics('html`<input aria-haspopup="test" />`');
+	hasDiagnostic(t, diagnostics, "no-incompatible-type-binding");
+});
+
 tsTest("Attribute binding: Union of 'string | Directive' type expression is assignable to string", t => {
 	const { diagnostics } = getDiagnostics('type DirectiveFn = {}; html`<input placeholder="${{} as string | DirectiveFn}" />`');
 	hasNoDiagnostics(t, diagnostics);