diff --git a/crates/astria-sequencer/CHANGELOG.md b/crates/astria-sequencer/CHANGELOG.md
index 9e18802d9..335a3a4e8 100644
--- a/crates/astria-sequencer/CHANGELOG.md
+++ b/crates/astria-sequencer/CHANGELOG.md
@@ -9,6 +9,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## Changed
+
+- Index all event attributes [#1786](https://github.com/astriaorg/astria/pull/1786).
+
 ## [1.0.0] - 2024-10-25
 
 ### Changed
diff --git a/crates/astria-sequencer/src/app/mod.rs b/crates/astria-sequencer/src/app/mod.rs
index 99d13a115..e116664a7 100644
--- a/crates/astria-sequencer/src/app/mod.rs
+++ b/crates/astria-sequencer/src/app/mod.rs
@@ -1175,7 +1175,16 @@ impl App {
                     .iter()
                     .any(|act| act.is_fee_asset_change() || act.is_fee_change());
 
-        Ok(state_tx.apply().1)
+        // index all event attributes
+        let mut events = state_tx.apply().1;
+        for event in &mut events {
+            event
+                .attributes
+                .iter_mut()
+                .for_each(|attr| attr.index = true);
+        }
+
+        Ok(events)
     }
 
     #[instrument(name = "App::end_block", skip_all)]
diff --git a/crates/astria-sequencer/src/app/tests_execute_transaction.rs b/crates/astria-sequencer/src/app/tests_execute_transaction.rs
index 7f4d99d65..76b1a1ae8 100644
--- a/crates/astria-sequencer/src/app/tests_execute_transaction.rs
+++ b/crates/astria-sequencer/src/app/tests_execute_transaction.rs
@@ -1278,3 +1278,54 @@ async fn transaction_execution_records_fee_event() {
     assert_eq!(event.attributes[2].key, "feeAmount");
     assert_eq!(event.attributes[3].key, "positionInTransaction");
 }
+
+#[tokio::test]
+async fn ensure_all_event_attributes_are_indexed() {
+    let mut app = initialize_app(None, vec![]).await;
+    let mut state_tx = StateDelta::new(app.state.clone());
+
+    let alice = get_alice_signing_key();
+    let bob_address = astria_address_from_hex_string(BOB_ADDRESS);
+    let value = 333_333;
+    state_tx
+        .put_bridge_account_rollup_id(&bob_address, [0; 32].into())
+        .unwrap();
+    state_tx.put_allowed_fee_asset(&nria()).unwrap();
+    state_tx
+        .put_bridge_account_ibc_asset(&bob_address, nria())
+        .unwrap();
+    app.apply(state_tx);
+
+    let transfer_action = Transfer {
+        to: bob_address,
+        amount: value,
+        asset: nria().into(),
+        fee_asset: nria().into(),
+    };
+    let bridge_lock_action = BridgeLock {
+        to: bob_address,
+        amount: 1,
+        asset: nria().into(),
+        fee_asset: nria().into(),
+        destination_chain_address: "test_chain_address".to_string(),
+    };
+    let tx = TransactionBody::builder()
+        .actions(vec![transfer_action.into(), bridge_lock_action.into()])
+        .chain_id("test")
+        .try_build()
+        .unwrap();
+
+    let signed_tx = Arc::new(tx.sign(&alice));
+    let events = app.execute_transaction(signed_tx).await.unwrap();
+
+    events
+        .iter()
+        .flat_map(|event| &event.attributes)
+        .for_each(|attribute| {
+            assert!(
+                attribute.index,
+                "attribute {} is not indexed",
+                attribute.key,
+            );
+        });
+}
diff --git a/crates/astria-sequencer/src/fees/state_ext.rs b/crates/astria-sequencer/src/fees/state_ext.rs
index 06e954e3a..5035fc6ef 100644
--- a/crates/astria-sequencer/src/fees/state_ext.rs
+++ b/crates/astria-sequencer/src/fees/state_ext.rs
@@ -42,10 +42,7 @@ use cnidarium::{
 };
 use futures::Stream;
 use pin_project_lite::pin_project;
-use tendermint::abci::{
-    Event,
-    EventAttributeIndexExt as _,
-};
+use tendermint::abci::Event;
 use tracing::instrument;
 
 use super::{
@@ -574,10 +571,10 @@ fn construct_tx_fee_event(fee: &Fee) -> Event {
     Event::new(
         "tx.fees",
         [
-            ("actionName", fee.action_name.to_string()).index(),
-            ("asset", fee.asset.to_string()).index(),
-            ("feeAmount", fee.amount.to_string()).index(),
-            ("positionInTransaction", fee.source_action_index.to_string()).index(),
+            ("actionName", fee.action_name.to_string()),
+            ("asset", fee.asset.to_string()),
+            ("feeAmount", fee.amount.to_string()),
+            ("positionInTransaction", fee.source_action_index.to_string()),
         ],
     )
 }
diff --git a/crates/astria-sequencer/src/utils.rs b/crates/astria-sequencer/src/utils.rs
index 9a3bff544..9bbcb4837 100644
--- a/crates/astria-sequencer/src/utils.rs
+++ b/crates/astria-sequencer/src/utils.rs
@@ -10,7 +10,6 @@ use astria_eyre::eyre::{
 };
 use tendermint::abci::{
     self,
-    EventAttributeIndexExt as _,
 };
 
 pub(crate) fn cometbft_to_sequencer_validator(
@@ -31,21 +30,19 @@ pub(crate) fn create_deposit_event(deposit: &Deposit) -> abci::Event {
     abci::Event::new(
         "tx.deposit",
         [
-            ("bridgeAddress", deposit.bridge_address.to_string()).index(),
-            ("rollupId", deposit.rollup_id.to_string()).index(),
-            ("amount", deposit.amount.to_string()).index(),
-            ("asset", deposit.asset.to_string()).index(),
+            ("bridgeAddress", deposit.bridge_address.to_string()),
+            ("rollupId", deposit.rollup_id.to_string()),
+            ("amount", deposit.amount.to_string()),
+            ("asset", deposit.asset.to_string()),
             (
                 "destinationChainAddress",
                 deposit.destination_chain_address.to_string(),
-            )
-                .index(),
+            ),
             (
                 "sourceTransactionId",
                 deposit.source_transaction_id.to_string(),
-            )
-                .index(),
-            ("sourceActionIndex", deposit.source_action_index.to_string()).index(),
+            ),
+            ("sourceActionIndex", deposit.source_action_index.to_string()),
         ],
     )
 }