diff --git a/yarn-project/end-to-end/src/e2e_bot.test.ts b/yarn-project/end-to-end/src/e2e_bot.test.ts
index 9fb5d09ff8f7..ba55a1a4941d 100644
--- a/yarn-project/end-to-end/src/e2e_bot.test.ts
+++ b/yarn-project/end-to-end/src/e2e_bot.test.ts
@@ -134,7 +134,10 @@ describe('e2e_bot', () => {
 
         l1RpcUrls,
         feePaymentMethod: 'fee_juice',
-        l1PrivateKey: getPrivateKey(),
+        // Use a dedicated L1 account (index 7) for bridging. The default mnemonic account (index 0)
+        // is shared with the sequencer which sends L1 block proposals, causing nonce races on the
+        // approve/deposit calls in bridgeL1FeeJuice. Indices 8 and 9 are used by other tests below.
+        l1PrivateKey: new SecretValue(bufferToHex(getPrivateKeyFromIndex(7)!)),
         flushSetupTransactions: true,
         // Increase fee headroom to handle fee volatility from rapid block building in tests.
         // Fees can escalate >10x due to blocks built by earlier tests and bridge operations.
@@ -174,7 +177,8 @@ describe('e2e_bot', () => {
 
         l1RpcUrls,
         feePaymentMethod: 'fee_juice',
-        l1PrivateKey: getPrivateKey(),
+        // See comment above — dedicated L1 account to avoid nonce races with the sequencer.
+        l1PrivateKey: new SecretValue(bufferToHex(getPrivateKeyFromIndex(7)!)),
         flushSetupTransactions: true,
         // Increase fee headroom to handle fee volatility from rapid block building in tests.
         // This test is especially susceptible because changing salt triggers a new bridge claim,