diff --git a/dockerfile b/dockerfile
index 6836318..fd7eeaf 100644
--- a/dockerfile
+++ b/dockerfile
@@ -23,6 +23,8 @@ ENV FFLOGS_GRAPHQL_URL=https://cn.fflogs.com/api/v2/client
 ENV FFLOGS_TOKEN_URL=https://cn.fflogs.com/oauth/token
 ENV FFLOGS_DEFAULT_SERVER_REGION=CN
 ENV FFLOGS_REQUEST_TIMEOUT_MS=10000
+# skia-canvas uses binary.module_name=index, so node-pre-gyp reads this mirror key.
+ENV npm_config_index_binary_host_mirror=https://registry.npmmirror.com/-/binary/skia-canvas/
 
 COPY package.json pnpm-lock.yaml ./
 
diff --git a/dockerfile.gateway b/dockerfile.gateway
index 85fc0c9..daa5670 100644
--- a/dockerfile.gateway
+++ b/dockerfile.gateway
@@ -23,6 +23,8 @@ ENV FFLOGS_GRAPHQL_URL=https://cn.fflogs.com/api/v2/client
 ENV FFLOGS_TOKEN_URL=https://cn.fflogs.com/oauth/token
 ENV FFLOGS_DEFAULT_SERVER_REGION=CN
 ENV FFLOGS_REQUEST_TIMEOUT_MS=10000
+# skia-canvas uses binary.module_name=index, so node-pre-gyp reads this mirror key.
+ENV npm_config_index_binary_host_mirror=https://registry.npmmirror.com/-/binary/skia-canvas/
 
 COPY package.json pnpm-lock.yaml ./
 
diff --git a/test/modules/qqbot/napcat-webui-gateway/gateway-deployment.spec.ts b/test/modules/qqbot/napcat-webui-gateway/gateway-deployment.spec.ts
index 0a863df..6ed51c0 100644
--- a/test/modules/qqbot/napcat-webui-gateway/gateway-deployment.spec.ts
+++ b/test/modules/qqbot/napcat-webui-gateway/gateway-deployment.spec.ts
@@ -43,6 +43,9 @@ describe('NapCat WebUI Gateway deployment configuration', () => {
       expect(dockerfile).toContain('mirrors.aliyun.com/debian');
       expect(dockerfile).toContain('mirrors.aliyun.com/debian-security');
       expect(dockerfile).toContain('Acquire::Retries=5');
+      expect(dockerfile).toContain(
+        'npm_config_index_binary_host_mirror=https://registry.npmmirror.com/-/binary/skia-canvas/',
+      );
     }
   });