diff --git a/app/blueprints/packages/releases.py b/app/blueprints/packages/releases.py
index 102e373e..b763be49 100644
--- a/app/blueprints/packages/releases.py
+++ b/app/blueprints/packages/releases.py
@@ -106,7 +106,7 @@ def create_release(package):
 	return render_template("packages/release_new.html", package=package, form=form)
 
 
-@bp.route("/packages/<author>/<name>/releases/<id>/download/")
+@bp.route("/packages/<author>/<name>/releases/<int:id>/download/")
 @is_package_page
 def download_release(package, id):
 	release = PackageRelease.query.get(id)
@@ -144,7 +144,7 @@ def download_release(package, id):
 	return redirect(release.url)
 
 
-@bp.route("/packages/<author>/<name>/releases/<id>/", methods=["GET", "POST"])
+@bp.route("/packages/<author>/<name>/releases/<int:id>/", methods=["GET", "POST"])
 @login_required
 @is_package_page
 def edit_release(package, id):
@@ -227,7 +227,7 @@ def bulk_change_release(package):
 	return render_template("packages/release_bulk_change.html", package=package, form=form)
 
 
-@bp.route("/packages/<author>/<name>/releases/<id>/delete/", methods=["POST"])
+@bp.route("/packages/<author>/<name>/releases/<int:id>/delete/", methods=["POST"])
 @login_required
 @is_package_page
 def delete_release(package, id):
diff --git a/app/blueprints/packages/screenshots.py b/app/blueprints/packages/screenshots.py
index d1c47785..7bc5832e 100644
--- a/app/blueprints/packages/screenshots.py
+++ b/app/blueprints/packages/screenshots.py
@@ -92,7 +92,7 @@ def create_screenshot(package):
 	return render_template("packages/screenshot_new.html", package=package, form=form)
 
 
-@bp.route("/packages/<author>/<name>/screenshots/<id>/edit/", methods=["GET", "POST"])
+@bp.route("/packages/<author>/<name>/screenshots/<int:id>/edit/", methods=["GET", "POST"])
 @login_required
 @is_package_page
 def edit_screenshot(package, id):
@@ -124,7 +124,7 @@ def edit_screenshot(package, id):
 	return render_template("packages/screenshot_edit.html", package=package, screenshot=screenshot, form=form)
 
 
-@bp.route("/packages/<author>/<name>/screenshots/<id>/delete/", methods=["POST"])
+@bp.route("/packages/<author>/<name>/screenshots/<int:id>/delete/", methods=["POST"])
 @login_required
 @is_package_page
 def delete_screenshot(package, id):
diff --git a/app/blueprints/tasks/__init__.py b/app/blueprints/tasks/__init__.py
index 5ce4b4d7..25ea8614 100644
--- a/app/blueprints/tasks/__init__.py
+++ b/app/blueprints/tasks/__init__.py
@@ -39,7 +39,7 @@ def start_getmeta():
 	})
 
 
-@bp.route("/tasks/<id>/")
+@bp.route("/tasks/<int:id>/")
 def check(id):
 	result = celery.AsyncResult(id)
 	status = result.status