diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 27d35f2..54db7f1 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -12,7 +12,6 @@ build:
 python:
   install:
     - requirements: requirements.txt
-    - requirements: standard-imghdr
 
 sphinx:
   builder: html