diff --git a/crypto/Cargo.toml b/crypto/Cargo.toml
index fab558264..d30fedcda 100644
--- a/crypto/Cargo.toml
+++ b/crypto/Cargo.toml
@@ -8,11 +8,7 @@ version = "0.1.0"
 [dependencies]
 zerotier-utils = { path = "../utils" }
 ed25519-dalek = { version = "1.0.1", features = ["std", "u64_backend"], default-features = false }
-foreign-types = "0.3.1"
-lazy_static = "^1"
 poly1305 = { version = "0.8.0", features = [], default-features = false }
-rand_core = "0.5.1"
-subtle = "2.4.1"
 x25519-dalek = { version = "1.2.0", features = ["std", "u64_backend"], default-features = false }
 openssl = { package = "openssl-zt", path = "../openssl-zt" }
 
@@ -22,9 +18,3 @@ winapi = { version = "^0", features = ["handleapi", "ws2ipdef", "ws2tcpip"] }
 [target."cfg(not(windows))".dependencies]
 libc = "^0"
 signal-hook = "^0"
-
-[dev-dependencies]
-criterion = "0.3"
-sha2 = "^0"
-hex-literal = "^0"
-