diff --git a/templates/tools/dockerfile/interoptest/grpc_interop_dart/Dockerfile.template b/templates/tools/dockerfile/interoptest/grpc_interop_dart/Dockerfile.template
index 34ea645cfa0..dee59335280 100644
--- a/templates/tools/dockerfile/interoptest/grpc_interop_dart/Dockerfile.template
+++ b/templates/tools/dockerfile/interoptest/grpc_interop_dart/Dockerfile.template
@@ -14,7 +14,7 @@
   # See the License for the specific language governing permissions and
   # limitations under the License.
 
-  FROM google/dart:2.0
+  FROM google/dart:2.3
 
   # Upgrade Dart to version 2.
   RUN apt-get update && apt-get upgrade -y dart
diff --git a/tools/dockerfile/interoptest/grpc_interop_dart/Dockerfile b/tools/dockerfile/interoptest/grpc_interop_dart/Dockerfile
index 897354891c1..43d8a60daea 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:2.0
+FROM google/dart:2.3
 
 # Upgrade Dart to version 2.
 RUN apt-get update && apt-get upgrade -y dart