diff --git a/tests/tests/authority_tests.cpp b/tests/tests/authority_tests.cpp
index f40c3eb3..8b0c6cbf 100644
--- a/tests/tests/authority_tests.cpp
+++ b/tests/tests/authority_tests.cpp
@@ -909,6 +909,7 @@ BOOST_FIXTURE_TEST_CASE( max_authority_membership, database_fixture )
          private_key_type privkey = generate_private_key( seed );
          private_keys.push_back( privkey );
       }
+      tx.set_expiration( db.head_block_time() + fc::minutes(5) );
       ptx = PUSH_TX( db, tx, ~0 );
 
       vector<public_key_type> key_ids;
@@ -946,6 +947,7 @@ BOOST_FIXTURE_TEST_CASE( max_authority_membership, database_fixture )
              anon_create_op.name = generate_anon_acct_name();
 
              tx.operations.push_back( anon_create_op );
+             tx.set_expiration( db.head_block_time() + fc::minutes(5) );
 
              if( num_keys > max_authority_membership )
              {
diff --git a/tests/tests/operation_tests.cpp b/tests/tests/operation_tests.cpp
index 11620145..cfcacd29 100644
--- a/tests/tests/operation_tests.cpp
+++ b/tests/tests/operation_tests.cpp
@@ -1391,6 +1391,7 @@ BOOST_AUTO_TEST_CASE( vesting_balance_withdraw_test )
       create_op.amount = amount;
       create_op.policy = cdd_vesting_policy_initializer(vesting_seconds);
       tx.operations.push_back( create_op );
+      tx.set_expiration( db.head_block_time() + fc::minutes(5) );
 
       processed_transaction ptx = PUSH_TX( db,  tx, ~0  );
       const vesting_balance_object& vbo = vesting_balance_id_type(