diff --git a/test/dart/test_client/pubspec.yaml b/test/dart/test_client/pubspec.yaml
index d1642f8..113054a 100644
--- a/test/dart/test_client/pubspec.yaml
+++ b/test/dart/test_client/pubspec.yaml
@@ -22,10 +22,10 @@
 homepage: http://thrift.apache.org
 
 environment:
-  sdk: ">=1.13.0 <2.0.0"
+  sdk: ">=1.24.3 <3.0.0"
 
 dependencies:
-  args: ^0.13.0
+  args: ">=0.13.0 <2.0.0"
   http: ^0.11.0
   thrift:
     path: ../../../lib/dart
@@ -33,4 +33,4 @@
     path: ../gen-dart/thrift_test
 
 dev_dependencies:
-  test: "^0.12.0"
+  test: ">=0.12.30 <2.0.0"
diff --git a/test/tests.json b/test/tests.json
index 43d6ded..3381a1f 100644
--- a/test/tests.json
+++ b/test/tests.json
@@ -562,6 +562,7 @@
   {
     "name": "dart",
     "client": {
+      "timeout": 15,
       "transports": [
         "buffered",
         "framed",
@@ -577,6 +578,7 @@
       ],
       "command": [
         "dart",
+	"--enable-asserts",
         "test_client/bin/main.dart"
       ]
     },