diff --git a/Dockerfile b/Dockerfile
index f35bcd4..b2d7cbb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -23,6 +23,7 @@ RUN export DEBIAN_FRONTEND='noninteractive' && \
     echo '   printcap name = /dev/null' >>/etc/samba/smb.conf && \
     echo '   disable spoolss = yes' >>/etc/samba/smb.conf && \
     echo '   socket options = TCP_NODELAY' >>/etc/samba/smb.conf && \
+    echo '   strict locking = no' >>/etc/samba/smb.conf && \
     echo '' >>/etc/samba/smb.conf && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/* /tmp/*
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 987fc26..f1c0ec4 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -23,6 +23,7 @@ RUN export DEBIAN_FRONTEND='noninteractive' && \
     echo '   printcap name = /dev/null' >>/etc/samba/smb.conf && \
     echo '   disable spoolss = yes' >>/etc/samba/smb.conf && \
     echo '   socket options = TCP_NODELAY' >>/etc/samba/smb.conf && \
+    echo '   strict locking = no' >>/etc/samba/smb.conf && \
     echo '' >>/etc/samba/smb.conf && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/* /tmp/*
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index 9ef639a..e6985aa 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -23,6 +23,7 @@ RUN export DEBIAN_FRONTEND='noninteractive' && \
     echo '   printcap name = /dev/null' >>/etc/samba/smb.conf && \
     echo '   disable spoolss = yes' >>/etc/samba/smb.conf && \
     echo '   socket options = TCP_NODELAY' >>/etc/samba/smb.conf && \
+    echo '   strict locking = no' >>/etc/samba/smb.conf && \
     echo '' >>/etc/samba/smb.conf && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/* /tmp/*