diff --git a/docs/conf.py b/docs/conf.py
index 9f6664b2..1454fedb 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -13,7 +13,6 @@
 # -- General configuration ---------------------------------------------------
 extensions = [
     "sphinx.ext.autodoc",
-    "sphinx.ext.intersphinx",
     "sphinx.ext.todo",
 ]
 templates_path = ["_templates"]
diff --git a/docs/requirements.txt b/docs/requirements.txt
deleted file mode 100644
index f6629e02..00000000
--- a/docs/requirements.txt
+++ /dev/null
@@ -1 +0,0 @@
-cython