diff --git a/seafile-server/Dockerfile b/seafile-server/Dockerfile
index 904fd21..f20139b 100644
--- a/seafile-server/Dockerfile
+++ b/seafile-server/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.16.2 AS get
+FROM alpine:3.16.3 AS get
 
 RUN apk add --no-cache wget
 
diff --git a/seahub-media/Dockerfile b/seahub-media/Dockerfile
index 91ab8cf..c1cfa2d 100644
--- a/seahub-media/Dockerfile
+++ b/seahub-media/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.16.2 AS get
+FROM alpine:3.16.3 AS get
 ENV SEAFILE_SERVER=seafile-server SEAFILE_VERSION=9.0.9
 
 RUN apk add --no-cache wget
diff --git a/seahub/Dockerfile b/seahub/Dockerfile
index c247f04..dac6c4f 100644
--- a/seahub/Dockerfile
+++ b/seahub/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.16.2 AS get
+FROM alpine:3.16.3 AS get
 ENV SEAFILE_SERVER=seafile-server SEAFILE_VERSION=9.0.9
 
 RUN apk add --no-cache wget