diff --git a/tests/requirements-relaxed.txt b/tests/requirements-relaxed.txt
index 1b0207a460e..daff9407c6e 100644
--- a/tests/requirements-relaxed.txt
+++ b/tests/requirements-relaxed.txt
@@ -36,7 +36,7 @@ babel==2.14.0
     # via
     #   sphinx
     #   sphinx-intl
-build==1.1.1
+build==1.2.1
     # via antsibull-core
 certifi==2024.2.2
     # via requests
diff --git a/tests/requirements.txt b/tests/requirements.txt
index 052a1c8078d..579fd4dd71e 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -36,7 +36,7 @@ babel==2.14.0
     # via
     #   sphinx
     #   sphinx-intl
-build==1.1.1
+build==1.2.1
     # via antsibull-core
 certifi==2024.2.2
     # via requests