diff --git a/docs/requirements.txt b/docs/requirements.txt
new file mode 100644
index 0000000..7295640
--- /dev/null
+++ b/docs/requirements.txt
@@ -0,0 +1,6 @@
+# SPDX-FileCopyrightText: 2017 Scott Shawcroft, written for Adafruit Industries
+# SPDX-FileCopyrightText: Copyright (c) 2021 Alec Delaney
+#
+# SPDX-License-Identifier: MIT
+
+sphinx>=4.0.0
diff --git a/requirements.txt b/requirements.txt
index 30b05b8..7b95b55 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,4 +5,3 @@
 
 Adafruit-Blinka
 adafruit-circuitpython-hid
-sphinx>=4.0.0