diff --git a/test/Dockerfile.distro b/test/Dockerfile.distro
index ae1dedf15d..3422f679f6 100644
--- a/test/Dockerfile.distro
+++ b/test/Dockerfile.distro
@@ -51,7 +51,7 @@ RUN install-tool bazelisk v1.26.0
 RUN install-tool bun 1.2.14
 
 # renovate: datasource=docker
-RUN install-tool dart 3.7.3
+RUN install-tool dart 3.8.1
 
 # renovate: datasource=github-releases packageName=jetify-com/devbox
 RUN install-tool devbox 0.14.2
diff --git a/test/dart/Dockerfile b/test/dart/Dockerfile
index 3e7ec26213..da935edc5c 100644
--- a/test/dart/Dockerfile
+++ b/test/dart/Dockerfile
@@ -49,7 +49,7 @@ FROM build AS testa
 USER 12021
 
 # renovate: datasource=docker
-RUN install-tool dart 3.7.3
+RUN install-tool dart 3.8.1
 
 RUN set -ex; \
     cd a; \
@@ -65,7 +65,7 @@ RUN set -ex; \
 FROM base AS testb
 
 # renovate: datasource=docker
-RUN install-tool dart 3.7.3
+RUN install-tool dart 3.8.1
 
 # fix test file perms for openstack
 RUN chown -R 1001 .
diff --git a/test/dart/Dockerfile.arm64 b/test/dart/Dockerfile.arm64
index a542b4b1ce..f1bfe87a62 100644
--- a/test/dart/Dockerfile.arm64
+++ b/test/dart/Dockerfile.arm64
@@ -38,7 +38,7 @@ ARG CONTAINERBASE_LOG_LEVEL
 FROM base AS test-dart
 
 # renovate: datasource=docker
-RUN install-tool dart 3.7.3
+RUN install-tool dart 3.8.1
 
 #--------------------------------------
 # Image: final