diff --git a/requirements-test-libraries.txt b/requirements-test-libraries.txt
index b3f2ba587..c7d01043a 100644
--- a/requirements-test-libraries.txt
+++ b/requirements-test-libraries.txt
@@ -146,7 +146,8 @@ trame-xterm==0.2.1
 Twisted==24.10.0
 tzdata==2024.2
 Unidecode==1.3.8
-vtk==9.4.0
+# vtk provides arm64 macOS binary wheels only for python >= 3.9.
+vtk==9.4.0; python_version >= '3.9' or sys_platform != 'darwin' or platform_machine != 'arm64'
 # On macOS, weasyprint requires pango and glib installed via Homebrew; on arm64, the Homebrew is
 # installed in /opt/homebrew/lib and does not seem to be visible to non-Homebrew python.
 weasyprint==63.0; python_version >= '3.9' and (sys_platform != 'darwin' or platform_machine != 'arm64')