diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 717bf5e..4a9e7a1 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -13,6 +13,10 @@ build:
   tools:
     python: "3"
 
+python:
+  install:
+    - requirements: firmware/docs/source/requirements.txt
+
 sphinx:
   configuration: firmware/docs/source/conf.py
 
diff --git a/firmware/docs/source/requirements.txt b/firmware/docs/source/requirements.txt
new file mode 100644
index 0000000..43eeb8e
--- /dev/null
+++ b/firmware/docs/source/requirements.txt
@@ -0,0 +1 @@
+sphinx-rtd-theme==1.3.0
diff --git a/firmware/requirements.txt b/firmware/requirements.txt
index 0a879cc..cc6c434 100644
--- a/firmware/requirements.txt
+++ b/firmware/requirements.txt
@@ -15,6 +15,5 @@ pyftdi==0.54.0
 pyserial==3.5
 pyusb==1.2.1
 setuptools==65.5.1
-sphinx_rtd_theme==1.3.0
 typing-extensions
 wheel==0.38.4