diff --git a/Dockerfile b/Dockerfile
index bf9543f..25f4e33 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ ENV ASPNETCORE_URLS=http://+:8080
 ENV ASPNETCORE_ENVIRONMENT=Production
 
 # Usando a imagem SDK para build
-FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
 WORKDIR /src
 COPY ["./CnpjApi.csproj", "./"]
 RUN dotnet restore "./CnpjApi.csproj"