diff --git a/cmd/acb-api/Dockerfile b/cmd/acb-api/Dockerfile
index 8d04bc4..b6d0ef6 100644
--- a/cmd/acb-api/Dockerfile
+++ b/cmd/acb-api/Dockerfile
@@ -3,7 +3,7 @@
 # and Glicko-2 rating updates. Connects to PostgreSQL and Valkey.
 
 # Build stage
-FROM golang:1.24-alpine AS builder
+FROM golang:1.25-alpine AS builder
 
 WORKDIR /build
 
diff --git a/cmd/acb-api/server.go b/cmd/acb-api/server.go
index aeeec94..f047a09 100644
--- a/cmd/acb-api/server.go
+++ b/cmd/acb-api/server.go
@@ -8,6 +8,7 @@ import (
 	"io"
 	"log"
 	"net/http"
+	"os"
 	"strconv"
 	"strings"
 	"time"
@@ -1137,9 +1138,9 @@ func (s *Server) authenticateWorker(r *http.Request) bool {
 	return parts[1] == s.cfg.WorkerAPIKey
 }
 
-// getEnv gets an environment variable with a default value
 func getEnv(key, defaultValue string) string {
-	// This function is a simple helper - in production use the one from config.go
-	// For now, inline the logic
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
 	return defaultValue
 }