diff --git a/demo/src/demo.ts b/demo/src/demo.ts
index ce830a9..4e09e8e 100644
--- a/demo/src/demo.ts
+++ b/demo/src/demo.ts
@@ -61,7 +61,7 @@ function onClickGenerate(): void {
 		if (!$form.reportValidity()) {
 			return;
 		}
-	} catch (ex) {
+	} catch {
 		// Ignore browsers that don't support reportValidity()
 	}
 
diff --git a/package.json b/package.json
index 2e463b9..4c7d124 100644
--- a/package.json
+++ b/package.json
@@ -11,14 +11,14 @@
     "test": "yarn workspaces run test"
   },
   "devDependencies": {
-    "@typescript-eslint/eslint-plugin": "^5.6.0",
-    "@typescript-eslint/parser": "^5.6.0",
+    "@typescript-eslint/eslint-plugin": "^8.46.1",
+    "@typescript-eslint/parser": "^8.46.1",
     "eslint": "8.57.0",
     "eslint-config-airbnb-base": "15.0.0",
     "eslint-config-prettier": "^10.0.1",
     "eslint-import-resolver-typescript": "^4.2.2",
     "eslint-plugin-import": "^2.25.3",
-    "eslint-plugin-jest": "^27.0.4",
+    "eslint-plugin-jest": "^28.14.0",
     "prettier": "2.2.1"
   }
 }