diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2512612..b420e41 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## v 2.1.0-nullsafety.5
+
+* Update SDK constraints to `>=2.12.0-0 <3.0.0` based on beta release
+  guidelines.
+
 ## v 2.1.0-nullsafety.4
 
 * Allow prerelease versions of the 2.12 sdk.
diff --git a/pubspec.yaml b/pubspec.yaml
index 9ebb20d..0678eef 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,11 +1,10 @@
 name: vector_math
-version: 2.1.0-nullsafety.4
+version: 2.1.0-nullsafety.5
 description: A Vector Math library for 2D and 3D applications.
 homepage: https://github.com/google/vector_math.dart
 
 environment:
-  # This must remain a tight constraint until nnbd is stable
-  sdk: '>=2.10.0-0 <2.12.0'
+  sdk: ">=2.12.0-0 <3.0.0"
 
 dev_dependencies:
   benchmark_harness: any