diff --git a/Dockerfile b/Dockerfile
index 7344960..8ae8f06 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ COPY go.mod go.sum main.go ./
 ENV CGO_ENABLED=0
 RUN go build .
 
-FROM gcr.io/cloud-spanner-emulator/emulator:1.5.17 as runtime
+FROM gcr.io/cloud-spanner-emulator/emulator:1.5.18 as runtime
 COPY backend/query backend/query
 COPY --from=builder /build/spanner-emulator ./
 EXPOSE 9010 9020