setup: update dependencies.

1 files changed, 2 insertions, 2 deletions

diff --git a/setup.py b/setup.py
index a4a0908..6890d02 100644
--- a/setup.py
+++ b/setup.py
@@ -19,8 +19,8 @@ setup(
     description="Board and connector definitions for nMigen",
     #long_description="""TODO""",
     license="BSD",
-    setup_requires=["setuptools_scm"],
-    install_requires=["setuptools", "nmigen"],
+    setup_requires=["wheel", "setuptools", "setuptools_scm"],
+    install_requires=["nmigen>=0.1,<0.5"],
     packages=find_packages(),
     project_urls={
         "Source Code": "https://github.com/nmigen/nmigen-boards",