diff --git a/ruma-identifiers-validation/Cargo.toml b/ruma-identifiers-validation/Cargo.toml
index 3e21555b..fe2cfe18 100644
--- a/ruma-identifiers-validation/Cargo.toml
+++ b/ruma-identifiers-validation/Cargo.toml
@@ -11,9 +11,3 @@ authors = [
 license = "MIT"
 version = "0.2.0"
 edition = "2018"
-
-[features]
-default = ["serde"]
-
-[dependencies]
-serde = { version = "1.0.118", optional = true, features = ["derive"] }
diff --git a/ruma-identifiers/Cargo.toml b/ruma-identifiers/Cargo.toml
index 47a1e099..dc72c4f7 100644
--- a/ruma-identifiers/Cargo.toml
+++ b/ruma-identifiers/Cargo.toml
@@ -21,7 +21,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 
 [features]
 default = ["serde"]
-serde = ["ruma-serde", "serde1", "ruma-identifiers-validation/serde"]
+serde = ["ruma-serde", "serde1"]
 
 [dependencies]
 either = { version = "1.6.1", optional = true }