diff --git a/{{cookiecutter.project_slug}}/runtime.txt b/{{cookiecutter.project_slug}}/runtime.txt
index 724c203e..385705b5 100644
--- a/{{cookiecutter.project_slug}}/runtime.txt
+++ b/{{cookiecutter.project_slug}}/runtime.txt
@@ -1 +1 @@
-python-3.8.2
+python-3.8.3