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 f5c48593b9a..c3a9c7fb892 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
@@ -25,4 +25,5 @@
   cp -r /var/local/jenkins/service_account $HOME || true
 
   cd /var/local/git/grpc-dart/interop
-  /usr/lib/dart/bin/pub get --verbose
+  # 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
diff --git a/tools/dockerfile/interoptest/grpc_interop_dart/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_dart/build_interop.sh
index 589983ce58c..2b4c07ed128 100644
--- a/tools/dockerfile/interoptest/grpc_interop_dart/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_dart/build_interop.sh
@@ -23,4 +23,5 @@ git clone /var/local/jenkins/grpc-dart /var/local/git/grpc-dart
 cp -r /var/local/jenkins/service_account $HOME || true
 
 cd /var/local/git/grpc-dart/interop
-/usr/lib/dart/bin/pub get --verbose
+# 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