diff --git a/docs/requirements.txt b/docs/requirements.txt
index 4bb009f..b55f0e3 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
-sphinx>=1.4, !=1.5.4
+sphinx>=2
 sphinx-autobuild
 sphinx_copybutton
 pydata-sphinx-theme