Expand analyzer constraint.
diff --git a/pubspec.lock b/pubspec.lock
index a9a29fd..51c4a1a 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -16,7 +16,7 @@
   barback:
     description: barback
     source: hosted
-    version: "0.15.2+5"
+    version: "0.15.2+6"
   browser:
     description: browser
     source: hosted
diff --git a/pubspec.yaml b/pubspec.yaml
index 7d5bf57..46f2018 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -6,7 +6,7 @@
 environment:
   sdk: ">=1.8.0 <2.0.0"
 dependencies:
-  analyzer: '>=0.25.0 <=0.26.0-alpha.1'
+  analyzer: '>=0.25.0 <0.27.0'
   args: '>=0.12.1 <0.14.0'
   collection: '^1.0.0'
   path: '>=1.0.0 <2.0.0'