diff --git a/Readme.md b/Readme.md
index 9e6424f..4576086 100644
--- a/Readme.md
+++ b/Readme.md
@@ -11,7 +11,7 @@ Use the [Nimble][2] package manager to add asynctest to an existing project.
 Add the following to its .nimble file:
 
 ```nim
-requires "asynctest >= 0.2.0 & < 0.3.0"
+requires "asynctest >= 0.3.0 & < 0.4.0"
 ```
 
 Usage
diff --git a/asynctest.nimble b/asynctest.nimble
index 5275ba1..0dad3e6 100644
--- a/asynctest.nimble
+++ b/asynctest.nimble
@@ -1,4 +1,4 @@
-version = "0.2.1"
+version = "0.3.0"
 author = "asynctest Authors"
 description = "Test asynchronous code"
 license = "MIT"