diff --git a/external-providers/dotnet-external-provider/Dockerfile.windows b/external-providers/dotnet-external-provider/Dockerfile.windows
index 6022ed46..f48cbe93 100644
--- a/external-providers/dotnet-external-provider/Dockerfile.windows
+++ b/external-providers/dotnet-external-provider/Dockerfile.windows
@@ -1,4 +1,4 @@
-FROM golang:1.20-windowsservercore-ltsc2022 as builder
+FROM golang:1.21-windowsservercore-ltsc2022 as builder
 
 COPY / /analyzer-lsp
 WORKDIR /dotnet-provider