diff --git a/{{cookiecutter.project_slug}}/runtime.txt b/{{cookiecutter.project_slug}}/runtime.txt
index 6f651a3b..42731f2f 100644
--- a/{{cookiecutter.project_slug}}/runtime.txt
+++ b/{{cookiecutter.project_slug}}/runtime.txt
@@ -1 +1 @@
-python-3.7.3
+python-3.7.4