diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
index 6ce9fc98..106734d1 100644
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -11,7 +11,7 @@ categories = { workspace = true }
 
 [dependencies]
 nexus-rt-macros = { path = "macros", version = "0.1.0" }
-postcard = { version = "1.0.10", features = ["alloc"], default_features = false }
+postcard = { version = "1.0.10", features = ["alloc"], default-features = false }
 serde = { version = "1.0", default-features = false }
 
 [lib]
diff --git a/sdk/Cargo.toml b/sdk/Cargo.toml
index 6d7a9c6d..3148a80a 100644
--- a/sdk/Cargo.toml
+++ b/sdk/Cargo.toml
@@ -14,7 +14,7 @@ serde.workspace = true
 
 nexus-core = { path = "../core", features = ["prover_nova", "prover_jolt", "prover_hypernova"] }
 nexus-macro = { path = "../macro" }
-postcard = { version = "1.0.10", features = ["alloc"], default_features = false }
+postcard = { version = "1.0.10", features = ["alloc"], default-features = false }
 uuid = { version = "1.9.1", features = ["v4", "fast-rng"] }
 thiserror = "1.0.61"