diff --git a/docs/requirements.txt b/docs/requirements.txt
index 4e43f67..840ff8f 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,3 @@
-sphinx-toolbox==2.15.3
-sphinx-argparse==0.3.1
+sphinx-toolbox
+sphinx-argparse
 sphinx_rtd_theme