diff --git a/test/Dockerfile.distro b/test/Dockerfile.distro
index 2a8eaa8831..fbc0511b46 100644
--- a/test/Dockerfile.distro
+++ b/test/Dockerfile.distro
@@ -48,7 +48,7 @@ FROM build AS test
 RUN install-tool bazelisk v1.27.0
 
 # renovate: datasource=npm
-RUN install-tool bun 1.2.20
+RUN install-tool bun 1.2.21
 
 # renovate: datasource=docker
 RUN install-tool dart 3.9.2
diff --git a/test/latest/Dockerfile b/test/latest/Dockerfile
index f87471e598..add8751e5c 100644
--- a/test/latest/Dockerfile
+++ b/test/latest/Dockerfile
@@ -219,7 +219,7 @@ FROM base AS teste
 RUN install-tool bazelisk v1.27.0
 
 # renovate: datasource=npm
-RUN install-tool bun 1.2.20
+RUN install-tool bun 1.2.21
 
 # renovate: datasource=github-releases packageName=jetify-com/devbox
 RUN install-tool devbox 0.16.0
diff --git a/test/latest/Dockerfile.arm64 b/test/latest/Dockerfile.arm64
index 38d14a27ef..01eab581d9 100644
--- a/test/latest/Dockerfile.arm64
+++ b/test/latest/Dockerfile.arm64
@@ -46,7 +46,7 @@ RUN install-tool bazelisk v1.27.0
 FROM base AS test-bun
 
 # renovate: datasource=npm
-RUN install-tool bun 1.2.20
+RUN install-tool bun 1.2.21
 
 #--------------------------------------
 # Image: devbox