diff --git a/requirements.txt b/requirements.txt
index 5feab09..a91c5c8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
 Adafruit-Blinka
-adafruit-circuitpython-pypixelbuf
+adafruit-circuitpython-pypixelbuf>=2.0.0
diff --git a/setup.py b/setup.py
index 2803423..0cb3ec7 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@
     # Author details
     author="Adafruit Industries & Damien P. George",
     author_email="circuitpython@adafruit.com",
-    install_requires=["Adafruit-Blinka"],
+    install_requires=["Adafruit-Blinka", "adafruit-circuitpython-pypixelbuf>=2.0.0"],
     # Choose your license
     license="MIT",
     # See https://pypi.python.org/pypi?%3Aaction=list_classifiers