diff --git a/cypress/integration/actions.spec.js b/cypress/integration/actions.spec.ts
similarity index 100%
rename from cypress/integration/actions.spec.js
rename to cypress/integration/actions.spec.ts
diff --git a/cypress/integration/diagramUpdate.spec.js b/cypress/integration/diagramUpdate.spec.ts
similarity index 100%
rename from cypress/integration/diagramUpdate.spec.js
rename to cypress/integration/diagramUpdate.spec.ts
diff --git a/cypress/integration/history.spec.js b/cypress/integration/history.spec.ts
similarity index 100%
rename from cypress/integration/history.spec.js
rename to cypress/integration/history.spec.ts
diff --git a/cypress/integration/loadSite.spec.js b/cypress/integration/loadSite.spec.ts
similarity index 100%
rename from cypress/integration/loadSite.spec.js
rename to cypress/integration/loadSite.spec.ts
diff --git a/cypress/support/commands.js b/cypress/support/commands.ts
similarity index 80%
rename from cypress/support/commands.js
rename to cypress/support/commands.ts
index fe152463..c80aaf8d 100644
--- a/cypress/support/commands.js
+++ b/cypress/support/commands.ts
@@ -23,6 +23,15 @@
 //
 // -- This will overwrite an existing command --
 // Cypress.Commands.overwrite('visit', (originalFn, url, options) => { ... })
-import * as snapshot from '@cypress/snapshot';
-snapshot.register();
+import { register } from '@cypress/snapshot';
+register();
+declare global {
+	// eslint-disable-next-line @typescript-eslint/no-namespace
+	namespace Cypress {
+		interface Chainable {
+			snapshot(): void;
+		}
+	}
+}
+
 import 'cypress-localstorage-commands';
diff --git a/cypress/tsconfig.json b/cypress/tsconfig.json
index 3398fd57..77501744 100644
--- a/cypress/tsconfig.json
+++ b/cypress/tsconfig.json
@@ -3,5 +3,5 @@
 		"allowJs": true,
 		"types": ["cypress", "cypress-localstorage-commands"]
 	},
-	"include": ["**/*.*"]
+	"include": ["**/*.ts"]
 }