diff --git a/docker/docker/Dockerfile.linux.amd64 b/docker/docker/Dockerfile.linux.amd64
index 8c61c253..8773d52b 100644
--- a/docker/docker/Dockerfile.linux.amd64
+++ b/docker/docker/Dockerfile.linux.amd64
@@ -1,9 +1,9 @@
-FROM docker:28.1.1-dind
+FROM docker:28.5.1-dind
 
 ENV DOCKER_HOST=unix:///var/run/docker.sock
 
 # Install cosign for container image signing
-RUN wget -O /usr/local/bin/cosign https://github.com/sigstore/cosign/releases/download/v2.5.3/cosign-linux-amd64 \
+RUN wget -O /usr/local/bin/cosign https://github.com/sigstore/cosign/releases/download/v2.6.3/cosign-linux-amd64 \
     && chmod +x /usr/local/bin/cosign
 
 ADD release/linux/amd64/drone-docker /bin/
diff --git a/docker/docker/Dockerfile.linux.arm64 b/docker/docker/Dockerfile.linux.arm64
index 86fd6272..143b25db 100644
--- a/docker/docker/Dockerfile.linux.arm64
+++ b/docker/docker/Dockerfile.linux.arm64
@@ -1,9 +1,9 @@
-FROM arm64v8/docker:28.1.1-dind
+FROM arm64v8/docker:28.5.1-dind
 
 ENV DOCKER_HOST=unix:///var/run/docker.sock
 
 # Install cosign for container image signing
-RUN wget -O /usr/local/bin/cosign https://github.com/sigstore/cosign/releases/download/v2.5.3/cosign-linux-arm64 \
+RUN wget -O /usr/local/bin/cosign https://github.com/sigstore/cosign/releases/download/v2.6.3/cosign-linux-arm64 \
     && chmod +x /usr/local/bin/cosign
 
 ADD release/linux/arm64/drone-docker /bin/