diff --git a/Cargo.toml b/Cargo.toml
index 41e9a89d5..5fc9047b6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,6 +13,12 @@ opt-level = 1
 [profile.test]
 opt-level = 0
 
+# Always optimize dependencies.
+# This does not apply to crates in the workspace.
+# <https://doc.rust-lang.org/cargo/reference/profiles.html#overrides>
+[profile.dev.package."*"]
+opt-level = 3
+
 [profile.release]
 lto = true
 panic = 'abort'