--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,33 +20,16 @@
 categories = ["science", "rust-patterns", "no-std"]
 license = "MIT"
 repository = "https://github.com/reem/rust-ordered-float"
-[dependencies.arbitrary]
-version = "1.0.0"
-optional = true
 
 [dependencies.num-traits]
 version = "0.2.1"
 default-features = false
 
-[dependencies.proptest]
-version = "1.0.0"
-optional = true
-
 [dependencies.rand]
 version = "0.8.3"
 optional = true
 default-features = false
 
-[dependencies.rkyv]
-version = "0.7"
-features = ["size_32"]
-optional = true
-default-features = false
-
-[dependencies.schemars]
-version = "0.6.5"
-optional = true
-
 [dependencies.serde]
 version = "1.0"
 optional = true