diff --git a/docker/Dockerfile.go_build b/docker/Dockerfile.go_build
index 68056bd5f..f5bd9abdb 100644
--- a/docker/Dockerfile.go_build
+++ b/docker/Dockerfile.go_build
@@ -19,7 +19,7 @@ RUN apk add fuse # for weed mount
 
 # Create non-root user and group
 RUN addgroup -g 1000 seaweed && \
-    adduser -D -u 1000 -G seaweed seaweed
+    adduser -D -u 1000 -g seaweed seaweed
 
 # volume server gprc port
 EXPOSE 18080
diff --git a/docker/Dockerfile.local b/docker/Dockerfile.local
index 6a24f0fa1..714c378f2 100644
--- a/docker/Dockerfile.local
+++ b/docker/Dockerfile.local
@@ -11,7 +11,7 @@ RUN apk add curl # for health checks
 
 # Create non-root user and group
 RUN addgroup -g 1000 seaweed && \
-    adduser -D -u 1000 -G seaweed seaweed
+    adduser -D -u 1000 -g seaweed seaweed
 
 # volume server grpc port
 EXPOSE 18080
diff --git a/docker/Dockerfile.rocksdb_large b/docker/Dockerfile.rocksdb_large
index 9fc969494..e33312f6a 100644
--- a/docker/Dockerfile.rocksdb_large
+++ b/docker/Dockerfile.rocksdb_large
@@ -36,7 +36,7 @@ RUN apk add fuse snappy gflags
 
 # Create non-root user and group
 RUN addgroup -g 1000 seaweed && \
-    adduser -D -u 1000 -G seaweed seaweed
+    adduser -D -u 1000 -g seaweed seaweed
 
 # volume server gprc port
 EXPOSE 18080
diff --git a/docker/Dockerfile.rocksdb_large_local b/docker/Dockerfile.rocksdb_large_local
index 5e3d5888f..afec11284 100644
--- a/docker/Dockerfile.rocksdb_large_local
+++ b/docker/Dockerfile.rocksdb_large_local
@@ -19,7 +19,7 @@ RUN apk add fuse snappy gflags tmux
 
 # Create non-root user and group
 RUN addgroup -g 1000 seaweed && \
-    adduser -D -u 1000 -G seaweed seaweed
+    adduser -D -u 1000 -g seaweed seaweed
 
 # volume server gprc port
 EXPOSE 18080