diff --git a/pyproject.toml b/pyproject.toml
index 9af8d63..5ead69a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,6 +24,7 @@ dependencies = [
 	"pytest-flakes",
 	"pytest-ruff",
 	"pytidylib",
+	"dc-design-system @ git+https://github.com/DemocracyClub/design-system.git@0.5.0",
 	"whitenoise",
 	"pysass",
 	"jsmin<3.1",
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 82eb60a..d383511 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -17,7 +17,8 @@ pytest-mock
 pytest-flakes
 pytest-ruff
 pytidylib
-dc-design-system @ git+https://github.com/DemocracyClub/design-system@0.5.0
+https://github.com/DemocracyClub/design-system/archive/refs/tags/0.5.0.tar.gz
+
 whitenoise
 pysass
 jsmin<3.1
\ No newline at end of file