diff --git a/Cargo.toml b/Cargo.toml
index c28cbe9..50235b3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,6 +7,9 @@ edition = "2018"
 [features]
 vendored-openssl = ["openssl/vendored"]
 
+[profile.dev.package."*"]
+opt-level = 3
+
 [profile.release]
 debug = true