diff --git a/tests/constraints-base.in b/tests/constraints-base.in
index 7a92b3815df..77cb17091f0 100644
--- a/tests/constraints-base.in
+++ b/tests/constraints-base.in
@@ -1,4 +1,3 @@
 # Known limitations for indirect/transitive dependencies.
 
 rstcheck < 6  # rstcheck 6.x has problem with rstcheck.core triggered by include files w/ sphinx directives https://github.com/rstcheck/rstcheck-core/issues/3
-sphinx < 7.2.0 # https://github.com/readthedocs/sphinx-notfound-page/issues/219
diff --git a/tests/requirements-relaxed.txt b/tests/requirements-relaxed.txt
index 3d639160156..df1b762fbbd 100644
--- a/tests/requirements-relaxed.txt
+++ b/tests/requirements-relaxed.txt
@@ -109,9 +109,8 @@ six==1.16.0
     # via twiggy
 snowballstemmer==2.2.0
     # via sphinx
-sphinx==7.1.2
+sphinx==7.2.5
     # via
-    #   -c tests/constraints-base.in
     #   -r tests/requirements-relaxed.in
     #   antsibull-docs
     #   sphinx-ansible-theme