diff --git a/operator/calculator.Dockerfile b/operator/calculator.Dockerfile
index e12d7ad490..be7324ce33 100644
--- a/operator/calculator.Dockerfile
+++ b/operator/calculator.Dockerfile
@@ -1,5 +1,5 @@
 # Build the calculator binary
-FROM golang:1.20.6 as builder
+FROM golang:1.21.7 as builder
 
 WORKDIR /workspace
 # Copy the Go Modules manifests