diff --git a/lib/ts_common.sh b/lib/ts_common.sh
index 8a36834331245b1fb1071e17386902a2b7ed7835..281907ac99371839f8e15e21421626cbc554567d 100644
--- a/lib/ts_common.sh
+++ b/lib/ts_common.sh
@@ -6,6 +6,18 @@
 
 g_build_dir="$TST_TS_TOPDIR/tst-open-libfuse/libfuse.install/libfuse/build"
 
+_detect_python3() {
+    local py
+    for py in python3.12 python3.11 python3.10 python3.9 python3.8; do
+        if command -v "$py" &>/dev/null; then
+            echo "$py"
+            return 0
+        fi
+    done
+    echo "python3"
+}
+g_python3="$(_detect_python3)"
+
 tc_setup_common() {
     msg "this is tc_setup_common"
     return 0
@@ -62,8 +74,8 @@ run_one_test() {
 
     umask 0022
 
-    echo "=== running test: $test_id ==="
-    python3 -m pytest "test/${test_id}" \
+    echo "=== running test: $test_id (using $g_python3) ==="
+    "$g_python3" -m pytest "test/${test_id}" \
         --verbose --tb=short -x \
         --log-level=INFO --log-cli-level=INFO \
         "${extra_args[@]}"
diff --git a/tst-open-libfuse b/tst-open-libfuse
index 0ecf25fb27cdde632dd8d45653769ec412aaedbd..6f9cb6f3a81bfbb39ba95822d2a88dbf503d44b1 160000
--- a/tst-open-libfuse
+++ b/tst-open-libfuse
@@ -1 +1 @@
-Subproject commit 0ecf25fb27cdde632dd8d45653769ec412aaedbd
+Subproject commit 6f9cb6f3a81bfbb39ba95822d2a88dbf503d44b1