diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 99b6a54..ce437df 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -38,6 +38,7 @@ cargo test
 - Add documentation comments (`///`) to any public functions you add
 - Describe what your PR does and why in the description
 - Do Cargo fmt
+- Only send pull requests to dev branch
 
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