@@ -40,7 +40,7 @@ $(BINARY):
4040 CGO_ENABLED=0 $(GO) build -a -installsuffix cgo -ldflags="-X main.VERSION=${VERSION}" -o $@ github.com/oauth2-proxy/oauth2-proxy/v7
4141
4242DOCKER_BUILD_PLATFORM ?= linux/amd64,linux/arm64,linux/ppc64le,linux/arm/v6,linux/arm/v7
43−DOCKER_BUILD_RUNTIME_IMAGE ?= alpine:3.17.2
43+DOCKER_BUILD_RUNTIME_IMAGE ?= alpine:3.18
4444DOCKER_BUILDX_ARGS ?= --build-arg RUNTIME_IMAGE=${DOCKER_BUILD_RUNTIME_IMAGE}
4545DOCKER_BUILDX := docker buildx build ${DOCKER_BUILDX_ARGS} --build-arg VERSION=${VERSION}
4646DOCKER_BUILDX_X_PLATFORM := $(DOCKER_BUILDX) --platform ${DOCKER_BUILD_PLATFORM}