diff --git a/Cargo.toml b/Cargo.toml
index 98e033b..992a35c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,13 +11,13 @@ categories = ["encoding", "decoding"]
 
 [features]
 default = ["std"]
-std = []
+std = ["serde/std", "serde_json/std", "thiserror/std"]
 json = ["serde_json"]
 
 [dependencies]
-serde = { version = "1.0"}
-serde_json = { version = "1.0", optional = true }
-thiserror = "2.0.17"
+serde = { version = "1.0", default-features = false}
+serde_json = { version = "1.0", optional = true, default-features = false}
+thiserror = {version="2.0.17", default-features = false}
 chrono = { version = "0.4", features = ["serde"] }
 enum_stringify = "0.6.4"
 num_enum = "0.7.5"