diff --git a/test/mocks/SismoConnectVerifierMock.sol b/test/mocks/SismoConnectVerifierMock.sol
index a60ae0c..875c960 100644
--- a/test/mocks/SismoConnectVerifierMock.sol
+++ b/test/mocks/SismoConnectVerifierMock.sol
@@ -8,6 +8,8 @@ contract SismoConnectVerifierMock is ISismoConnectVerifier {
   uint8 public constant IMPLEMENTATION_VERSION = 1;
   bytes32 public immutable SISMO_CONNECT_VERSION = "sismo-connect-v1.1";
 
+  bool public isProofValid = true;
+
   // struct to store informations about the number of verified auths and claims returned
   // indexes of the first available slot in the arrays of auths and claims are also stored
   // this struct is used to avoid stack to deep errors without using via_ir in foundry
@@ -25,11 +27,21 @@ contract SismoConnectVerifierMock is ISismoConnectVerifier {
     VerifiedClaim[] claims;
   }
 
+  error InvalidProof();
+
+  function setIsProofValid(bool _isProofValid) external {
+    isProofValid = _isProofValid;
+  }
+
   function verify(
     SismoConnectResponse memory response,
     SismoConnectRequest memory, // request
     SismoConnectConfig memory // config
   ) external view override returns (SismoConnectVerifiedResult memory) {
+    if (!isProofValid) {
+      revert InvalidProof();
+    }
+
     uint256 responseProofsArrayLength = response.proofs.length;
     VerifiedArraysInfos memory infos = VerifiedArraysInfos({
       nbOfAuths: 0,
diff --git a/test/unit/SismoConnect.t.sol b/test/unit/SismoConnect.t.sol
index 8759c11..a286920 100644
--- a/test/unit/SismoConnect.t.sol
+++ b/test/unit/SismoConnect.t.sol
@@ -65,7 +65,7 @@ contract SismoConnectTest is BaseTest {
     });
   }
 
-  function test_verifyProof() public view {
+  function test_verifyValidProof() public view {
     bytes
       memory responseBytes = hex"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";
     ClaimRequest memory claimRequest = claimRequestBuilder.build({groupId: bytes16("group-id")});
@@ -73,4 +73,15 @@ contract SismoConnectTest is BaseTest {
     // the mock will return true for any proof well encoded in the response
     sismoConnect.exposed_verify({responseBytes: responseBytes, claim: claimRequest});
   }
+
+  function test_RevertWith_InvalidProof() public {
+    // set the mock to return the invalid proof error
+    sismoConnectVerifier.setIsProofValid(false);
+
+    bytes
+      memory responseBytes = hex"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";
+    ClaimRequest memory claimRequest = claimRequestBuilder.build({groupId: bytes16("group-id")});
+    vm.expectRevert(abi.encodeWithSignature("InvalidProof()"));
+    sismoConnect.exposed_verify({responseBytes: responseBytes, claim: claimRequest});
+  }
 }