diff --git a/sdk/Cargo.toml b/sdk/Cargo.toml
index fc27610ef6..54391e10bc 100644
--- a/sdk/Cargo.toml
+++ b/sdk/Cargo.toml
@@ -44,7 +44,7 @@ borsh = "0.9.0"
 base64 = "0.13"
 bs58 = "0.4.0"
 byteorder = { version = "1.4.3", optional = true }
-chrono = { version = "0.4", optional = true }
+chrono = { default-features = false, features = ["alloc"], version = "0.4", optional = true }
 curve25519-dalek = { version = "3.2.0", optional = true }
 derivation-path = { version = "0.1.3", default-features = false }
 digest = { version = "0.9.0", optional = true }