diff --git a/crates/ruma-signatures/CHANGELOG.md b/crates/ruma-signatures/CHANGELOG.md
index c0a12a53..886e8e54 100644
--- a/crates/ruma-signatures/CHANGELOG.md
+++ b/crates/ruma-signatures/CHANGELOG.md
@@ -4,6 +4,10 @@ Bug fixes:
 
 - Ignore keys with unknown algorithms in `verify_events`
 
+Improvements:
+
+- Remove `age_ts` from `REFERENCE_HASH_FIELDS_TO_REMOVE` according to a spec clarification
+
 # 0.13.1
 
 No changes for this version
diff --git a/crates/ruma-signatures/src/functions.rs b/crates/ruma-signatures/src/functions.rs
index 96ef8e13..73fd8965 100644
--- a/crates/ruma-signatures/src/functions.rs
+++ b/crates/ruma-signatures/src/functions.rs
@@ -31,7 +31,7 @@ static CANONICAL_JSON_FIELDS_TO_REMOVE: &[&str] = &["signatures", "unsigned"];
 static CONTENT_HASH_FIELDS_TO_REMOVE: &[&str] = &["hashes", "signatures", "unsigned"];
 
 /// The fields to remove from a JSON object when creating a reference hash of an event.
-static REFERENCE_HASH_FIELDS_TO_REMOVE: &[&str] = &["age_ts", "signatures", "unsigned"];
+static REFERENCE_HASH_FIELDS_TO_REMOVE: &[&str] = &["signatures", "unsigned"];
 
 /// Signs an arbitrary JSON object and adds the signature to an object under the key `signatures`.
 ///