diff --git a/.travis.yml b/.travis.yml
index 65d5bde4dcd7522dfe3040503e905268d56d8dfa..cb228b5ced5fadd48d25f46c183804c7bdeafcd2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,6 @@ dart:
  - dev
  - stable
  - 1.23.0
- - 1.22.1
 
 # Content shell needs these fonts.
 addons:
@@ -43,7 +42,7 @@ dart_task:
  - test: --platform dartium
    install_dartium: true
 
- # Split the tests into four shards to help parallelize them across Travis workers.
+ # Split the tests into five shards to help parallelize them across Travis workers.
  - test: --preset travis --total-shards 5 --shard-index 0
    install_dartium: true
  - test: --preset travis --total-shards 5 --shard-index 1
@@ -56,10 +55,6 @@ dart_task:
    install_dartium: true
 
 matrix:
-  exclude:
-    # Repo was formatted with the 1.23 SDK.
-    - dart: 1.22.1
-      dart_task: dartfmt
   include:
     - dart: stable
       dart_task: dartfmt
diff --git a/pubspec.yaml b/pubspec.yaml
index 3a4eb607705883ab4d8d0abb99806cb4d54697cd..085263e95447c6a6a1a1b2c2c9297f49d8d62ba0 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -4,7 +4,7 @@ author: Dart Team <misc@dartlang.org>
 description: A library for writing dart unit tests.
 homepage: https://github.com/dart-lang/test
 environment:
-  sdk: '>=1.14.0 <2.0.0'
+  sdk: '>=1.23.0 <2.0.0'
 dependencies:
   analyzer: '>=0.26.4 <0.31.0'
   args: '^0.13.1'