Update version in README.md

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PyO3 · Mar 19, 2023 · 1d78642 · 1d78642
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commit 1d78642
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diff --git a/README.md b/README.md
@@ -12,7 +12,7 @@ Add it to your ``Cargo.toml``:
 
 ```toml
 [dependencies]
-pyproject-toml = "0.3"
+pyproject-toml = "0.4"
 ```
 
 then you are good to go. If you are using Rust 2015 you have to add ``extern crate pyproject_toml`` to your crate root as well.