diff --git a/sdk/Dockerfile-sdk-apk b/sdk/Dockerfile-sdk-apk
index 935a982..1a87a7b 100644
--- a/sdk/Dockerfile-sdk-apk
+++ b/sdk/Dockerfile-sdk-apk
@@ -1,4 +1,4 @@
-FROM openwrt/sdk:x86-64-SNAPSHOT
+FROM openwrt/sdk:x86_64-v25.12.3
 WORKDIR /builder
 RUN ./setup.sh \
     && ./scripts/feeds update -a \
diff --git a/sdk/Dockerfile-sdk-ipk b/sdk/Dockerfile-sdk-ipk
index 9b6eac5..adee192 100644
--- a/sdk/Dockerfile-sdk-ipk
+++ b/sdk/Dockerfile-sdk-ipk
@@ -1,4 +1,4 @@
-FROM openwrt/sdk:x86_64-v24.10.3
+FROM openwrt/sdk:x86_64-v24.10.6
 WORKDIR /builder
 RUN ./scripts/feeds update -a \
     && ./scripts/feeds install luci-base \