diff --git a/artifacts/bytecode.hex b/artifacts/bytecode.hex
index 8ce8b34..71e0423 100644
--- a/artifacts/bytecode.hex
+++ b/artifacts/bytecode.hex
@@ -1 +1 @@
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diff --git a/src/Escrow.sol b/src/Escrow.sol
index 569d221..726fb5d 100644
--- a/src/Escrow.sol
+++ b/src/Escrow.sol
@@ -75,6 +75,9 @@ contract Escrow {
             tryResetBondData();
         }
 
+        // Prevent double bonding - no one can bond while another executor is actively bonded
+        require(!is_bonded(), "Another executor is already bonded");
+
         IERC20(tokenContract).transferFrom(msg.sender, address(this), _bondAmount);
 
         bondedExecutor = msg.sender;
diff --git a/test/Escrow.t.sol b/test/Escrow.t.sol
index ebb07ee..6da94e9 100644
--- a/test/Escrow.t.sol
+++ b/test/Escrow.t.sol
@@ -327,6 +327,33 @@ contract EscrowTest is Test {
         assertFalse(escrow.is_bonded());
     }
 
+    function testDoubleBondingPrevented() public {
+        _fundContract();
+        _bondExecutor();
+
+        vm.startPrank(other);
+        token.approve(address(escrow), BOND_AMOUNT);
+        vm.expectRevert("Another executor is already bonded");
+        escrow.bond(BOND_AMOUNT);
+        vm.stopPrank();
+    }
+
+    function testBondAfterFirstExecutorStillActive() public {
+        _fundContract();
+        _bondExecutor();
+
+        vm.warp(block.timestamp + 4 minutes);
+        assertTrue(escrow.is_bonded());
+
+        vm.startPrank(other);
+        token.approve(address(escrow), BOND_AMOUNT);
+        vm.expectRevert("Another executor is already bonded");
+        escrow.bond(BOND_AMOUNT);
+        vm.stopPrank();
+
+        assertEq(escrow.bondedExecutor(), executor);
+    }
+
     function testMultipleBondCycles() public {
         _fundContract();