diff --git a/templates/tools/dockerfile/interoptest/grpc_interop_dart/build_interop.sh.template b/templates/tools/dockerfile/interoptest/grpc_interop_dart/build_interop.sh.template
index c3a9c7fb892..a8d02e29373 100644
--- a/templates/tools/dockerfile/interoptest/grpc_interop_dart/build_interop.sh.template
+++ b/templates/tools/dockerfile/interoptest/grpc_interop_dart/build_interop.sh.template
@@ -26,4 +26,4 @@
 
   cd /var/local/git/grpc-dart/interop
   # De-flake attempt: run the cmd one more time in case of transient failure
-  /usr/lib/dart/bin/pub get --verbose || /usr/lib/dart/bin/pub get --verbose
+  /usr/lib/dart/bin/dart pub get --verbose || /usr/lib/dart/bin/dart pub get --verbose
diff --git a/tools/dockerfile/interoptest/grpc_interop_dart/Dockerfile b/tools/dockerfile/interoptest/grpc_interop_dart/Dockerfile
index 6ff573470f8..4e4a0c7a849 100644
--- a/tools/dockerfile/interoptest/grpc_interop_dart/Dockerfile
+++ b/tools/dockerfile/interoptest/grpc_interop_dart/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM google/dart:2.12
+FROM dart:2.18-sdk
 
 # Define the default command.
 CMD ["bash"]
diff --git a/tools/dockerfile/interoptest/grpc_interop_dart/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_dart/build_interop.sh
index 2b4c07ed128..e3c67df4c8f 100644
--- a/tools/dockerfile/interoptest/grpc_interop_dart/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_dart/build_interop.sh
@@ -24,4 +24,4 @@ cp -r /var/local/jenkins/service_account $HOME || true
 
 cd /var/local/git/grpc-dart/interop
 # De-flake attempt: run the cmd one more time in case of transient failure
-/usr/lib/dart/bin/pub get --verbose || /usr/lib/dart/bin/pub get --verbose
+/usr/lib/dart/bin/dart pub get --verbose || /usr/lib/dart/bin/dart pub get --verbose