diff --git a/Dockerfile b/Dockerfile
index 1b8a27f5..c1b3b8c3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -40,7 +40,7 @@ RUN \
     /build
 
 # set version for s6 overlay
-ARG S6_OVERLAY_VERSION="3.2.0.2"
+ARG S6_OVERLAY_VERSION="3.2.1.0"
 ARG S6_OVERLAY_ARCH="x86_64"
 
 # add s6 overlay
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 0cbbfcaa..09850b4a 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -40,7 +40,7 @@ RUN \
     /build
 
 # set version for s6 overlay
-ARG S6_OVERLAY_VERSION="3.2.0.2"
+ARG S6_OVERLAY_VERSION="3.2.1.0"
 ARG S6_OVERLAY_ARCH="aarch64"
 
 # add s6 overlay
diff --git a/root/etc/s6-overlay/s6-rc.d/init-custom-files/run b/root/etc/s6-overlay/s6-rc.d/init-custom-files/run
index 3d8a17e5..6b57858b 100755
--- a/root/etc/s6-overlay/s6-rc.d/init-custom-files/run
+++ b/root/etc/s6-overlay/s6-rc.d/init-custom-files/run
@@ -9,12 +9,12 @@ if [[ -e "${SCRIPTS_DIR}" ]] && [[ -n "$(/bin/ls -A ${SCRIPTS_DIR} 2>/dev/null)"
     echo "[custom-init] Files found, executing"
     for SCRIPT in "${SCRIPTS_DIR}"/*; do
         NAME="$(basename "${SCRIPT}")"
-        if [[ -f "${SCRIPT}" ]]; then
+        if [[ -x "${SCRIPT}" ]]; then
             echo "[custom-init] ${NAME}: executing..."
             /bin/bash "${SCRIPT}"
             echo "[custom-init] ${NAME}: exited $?"
-        elif [[ ! -f "${SCRIPT}" ]]; then
-            echo "[custom-init] ${NAME}: is not a file"
+        elif [[ ! -x "${SCRIPT}" ]]; then
+            echo "[custom-init] ${NAME}: is not an executable file"
         fi
     done
 else