diff --git a/test/Dockerfile.distro b/test/Dockerfile.distro
index 23f4736bfa..ccc7074ee2 100644
--- a/test/Dockerfile.distro
+++ b/test/Dockerfile.distro
@@ -47,7 +47,7 @@ FROM build AS test
 RUN install-tool bazelisk v1.28.1
 
 # renovate: datasource=github-releases packageName=bufbuild/buf
-RUN install-tool buf v1.67.0
+RUN install-tool buf v1.68.4
 
 # renovate: datasource=npm
 RUN install-tool bun 1.3.13
diff --git a/test/latest/Dockerfile b/test/latest/Dockerfile
index cffa454a78..4041172198 100644
--- a/test/latest/Dockerfile
+++ b/test/latest/Dockerfile
@@ -220,7 +220,7 @@ FROM base AS teste
 RUN install-tool bazelisk v1.28.1
 
 # renovate: datasource=github-releases packageName=bufbuild/buf
-RUN install-tool buf v1.67.0
+RUN install-tool buf v1.68.4
 
 # renovate: datasource=npm
 RUN install-tool bun 1.3.13
diff --git a/test/latest/Dockerfile.arm64 b/test/latest/Dockerfile.arm64
index 1f4d0de2a6..4dae80d22b 100644
--- a/test/latest/Dockerfile.arm64
+++ b/test/latest/Dockerfile.arm64
@@ -174,7 +174,7 @@ RUN install-tool vendir v0.45.3
 FROM base AS test-others
 
 # renovate: datasource=github-releases packageName=bufbuild/buf
-RUN install-tool buf v1.67.0
+RUN install-tool buf v1.68.4
 
 # renovate: datasource=github-releases packageName=kubernetes/kubernetes
 RUN install-tool kubectl v1.36.0