diff --git a/Cargo.lock b/Cargo.lock
index 602a044f38f..593a35a2674 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1415,7 +1415,6 @@ dependencies = [
  "icu_properties",
  "icu_provider",
  "icu_testdata",
- "postcard",
  "serde",
  "smallvec",
  "utf8_iter",
diff --git a/experimental/collator/Cargo.toml b/experimental/collator/Cargo.toml
index 33b52cbcb55..d2684626ce6 100644
--- a/experimental/collator/Cargo.toml
+++ b/experimental/collator/Cargo.toml
@@ -42,7 +42,6 @@ icu_normalizer = { version = "0.6", path = "../../experimental/normalizer" }
 icu_properties = { version = "0.6", path = "../../components/properties" }
 serde = { version = "1.0", default-features = false, features = ["derive", "alloc"], optional = true }
 zerovec = { version = "0.7", path = "../../utils/zerovec", features = ["serde"] }
-postcard = { version = "0.7", features = ["use-std"] }
 utf8_iter = "1.0"
 
 [dev-dependencies]