Update version number in readme to fix #221

konstin · web-flow · commit 1ea5d209ff09 · 2018-09-13T19:33:14.000+02:00
diff --git a/README.md b/README.md
@@ -83,7 +83,7 @@ Add `pyo3` this to your `Cargo.toml`:
 
 ```toml
 [dependencies]
-pyo3 = "0.3"
+pyo3 = "0.4"
 ```
 
 Example program displaying the value of `sys.version`:
