diff --git a/Dockerfile b/Dockerfile
index 04c8ac8..697d6cd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -36,7 +36,7 @@ RUN \
   sed -i -e 's/^root::/root:!:/' /root-out/etc/shadow
 
 # set version for s6 overlay
-ARG S6_OVERLAY_VERSION="3.1.0.1"
+ARG S6_OVERLAY_VERSION="3.1.2.1"
 ARG S6_OVERLAY_ARCH="x86_64"
 
 # add s6 overlay
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index e0552ef..1c281ce 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -36,7 +36,7 @@ RUN \
   sed -i -e 's/^root::/root:!:/' /root-out/etc/shadow
 
 # set version for s6 overlay
-ARG S6_OVERLAY_VERSION="3.1.0.1"
+ARG S6_OVERLAY_VERSION="3.1.2.1"
 ARG S6_OVERLAY_ARCH="aarch64"
 
 # add s6 overlay
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index 19e089a..41b5d96 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -36,7 +36,7 @@ RUN \
   sed -i -e 's/^root::/root:!:/' /root-out/etc/shadow
 
 # set version for s6 overlay
-ARG S6_OVERLAY_VERSION="3.1.0.1"
+ARG S6_OVERLAY_VERSION="3.1.2.1"
 ARG S6_OVERLAY_ARCH="armhf"
 
 # add s6 overlay