diff --git a/functions/source/soci-index-generator-lambda/Dockerfile b/functions/source/soci-index-generator-lambda/Dockerfile
index 0d2c7fc..292db54 100644
--- a/functions/source/soci-index-generator-lambda/Dockerfile
+++ b/functions/source/soci-index-generator-lambda/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.25-alpine AS builder
+FROM golang:1.26-alpine AS builder
 
 # Install only essential build dependencies
 RUN apk add --no-cache \