diff --git a/.github/workflows/build-as-image.yml b/.github/workflows/build-as-image.yml
index fdf0befd5..c7f08b6a9 100644
--- a/.github/workflows/build-as-image.yml
+++ b/.github/workflows/build-as-image.yml
@@ -67,7 +67,7 @@ jobs:
     - name: Build ${{ matrix.name }} Container Image
       run: |
         commit_sha=${{ github.sha }}
-        docker buildx build --platform "${{ matrix.target_platform }}" \
+        docker buildx build --platform "${{ matrix.target_platform }}" --provenance false \
           -f "${{ matrix.docker_file }}" ${{ inputs.build_option }} \
           --build-arg BUILDPLATFORM="${{ matrix.build_platform }}" \
           --build-arg ARCH="${{ matrix.target_arch }}" \
diff --git a/.github/workflows/build-kbs-image.yml b/.github/workflows/build-kbs-image.yml
index 4491b908b..95f87c907 100644
--- a/.github/workflows/build-kbs-image.yml
+++ b/.github/workflows/build-kbs-image.yml
@@ -78,7 +78,7 @@ jobs:
     - name: Build Container Image KBS (${{ matrix.name }})
       run: |
         commit_sha=${{ github.sha }}
-        docker buildx build --platform "${{ matrix.target_platform }}" \
+        docker buildx build --platform "${{ matrix.target_platform }}" --provenance false \
           -f "${{ matrix.docker_file }}" ${{ inputs.build_option }} \
           -t "ghcr.io/confidential-containers/staged-images/${{ matrix.tag }}:${commit_sha}-${{ matrix.target_arch }}" \
           -t "ghcr.io/confidential-containers/staged-images/${{ matrix.tag }}:latest-${{ matrix.target_arch }}" \
diff --git a/kbs/docker/kbs-client/Dockerfile b/kbs/docker/kbs-client/Dockerfile
index 5d3ea6a0f..257eee6a3 100644
--- a/kbs/docker/kbs-client/Dockerfile
+++ b/kbs/docker/kbs-client/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.76.0 AS builder
+FROM rust:1.78.0 AS builder
 ARG ARCH=x86_64
 
 WORKDIR /usr/src/kbs