diff --git a/Cargo.toml b/Cargo.toml
index 8bc91018..87136f5f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -40,6 +40,9 @@ test = true
 doctest = true
 doc = true
 
+[profile.dev.package."*"]
+opt-level = 3 # Compile dependencies with optimizations on.
+
 [profile.release]
 # debug = true # Might be nice to have a custom profile for flamegraphs.
 # strip = false