diff --git a/pyproject.toml b/pyproject.toml
index 6d3e1174bf4b6..fc2218f220ac6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -66,6 +66,7 @@ asimage="ON"
 opengl="OFF"
 runtime_cxxmodules="OFF"
 fail-on-missing="ON"
+CMAKE_CXX_STANDARD="20"
 
 # Prevent CMake from producing its own .dist-info metadata
 _wheel_build="ON"
@@ -114,3 +115,7 @@ manylinux-aarch64-image = "manylinux_2_28"
 repair-wheel-command = "auditwheel repair --disable-isa-ext-check -w {dest_dir} {wheel}"
 before-all = "dnf install -y epel-release && /usr/bin/crb enable && dnf install -y openssl-devel libX11-devel libXpm-devel libXft-devel libXext-devel libuuid-devel libjpeg-devel giflib-devel libtiff-devel"
 
+[tool.cibuildwheel.macos]
+# The macOS runner images now ship OpenSSL 4, which the builtin XRootD 5.9.x does not
+# compile against, see https://github.com/actions/runner-images/issues/14856
+environment = "OPENSSL_ROOT_DIR=$(brew --prefix openssl@3)"
diff --git a/test/wheels/test_tutorials.py b/test/wheels/test_tutorials.py
index 4703ec5355fc0..d6b23f787abf7 100644
--- a/test/wheels/test_tutorials.py
+++ b/test/wheels/test_tutorials.py
@@ -75,6 +75,8 @@ def test_tutorial(tutorial):
         pytest.skip(f"Tutorial {tutorial} timed out")
 
     except subprocess.CalledProcessError as e:
+        print("Test stdout:", e.stdout)
+        print("Test stderr:", e.stderr)
         # read stderr to see if EOFError occurred
         if "EOFError" in e.stderr:
             pytest.skip(f"Skipping {tutorial.name} (requires user input)")
@@ -118,6 +120,8 @@ def test_cpp_tutorial(tutorial):
         pytest.skip(f"Tutorial {tutorial} timed out")
 
     except subprocess.CalledProcessError as e:
+        print("Test stdout:", e.stdout)
+        print("Test stderr:", e.stderr)
         if e.returncode == -signal.SIGILL or e.returncode == 132:
             pytest.fail(f"Failing {tutorial.name} (illegal instruction on this platform)")
         elif "EOFError" in e.stderr: