diff --git a/docs/requirements.txt b/docs/requirements.txt
index d9f7bc1..466d9bd 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -9,9 +9,9 @@ lightning>=2.2.1
 jsonargparse[signatures]>=4.27.7
 numpy<=1.26.4  # Avoid dependency conflicts.
 # For the documentation
-sphinx
-kaleido
-renku-sphinx-theme
-sphinx-copybutton
-sphinx-design
-sphinx-gallery
+sphinx==7.3.7
+kaleido==0.2.1
+renku-sphinx-theme==0.4.0
+sphinx-copybutton==0.5.2
+sphinx-design==0.6.0
+sphinx-gallery==0.16.0