diff --git a/Dockerfile b/Dockerfile
index df45f1a..d8cf456 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.23-alpine AS build
+FROM golang:1.27-alpine AS build
 WORKDIR /src
 COPY go.mod go.sum ./
 RUN go mod download
diff --git a/go.mod b/go.mod
index 42c2a6d..4f378ed 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module ucfa/st-agent-worker
 
-go 1.27.0
+go 1.26.0
 
 require (
 	golang.org/x/time v0.16.0
diff --git a/server.go b/server.go
index 98a6941..cebbb4a 100644
--- a/server.go
+++ b/server.go
@@ -4,7 +4,6 @@ import (
 	"context"
 	"crypto/subtle"
 	"errors"
-	"fmt"
 	"log"
 	"net/http"
 	"strconv"