diff --git a/main/constants.zkasm b/main/constants.zkasm
index 8f3697f8..216975d1 100644
--- a/main/constants.zkasm
+++ b/main/constants.zkasm
@@ -9,7 +9,7 @@ CONST %LOCAL_EXIT_ROOT_STORAGE_POS = 1
 CONST %LAST_TX_STORAGE_POS = 0
 CONST %STATE_ROOT_STORAGE_POS = 1
 CONST %MAX_MEM_EXPANSION_BYTES = 0x3fffe0
-CONST %FORK_ID = 1
+CONST %FORK_ID = 2
 
 ; RLP
 CONST %MIN_VALUE_SHORT = 128
diff --git a/main/load-tx-rlp.zkasm b/main/load-tx-rlp.zkasm
index 10737d02..fc96871b 100644
--- a/main/load-tx-rlp.zkasm
+++ b/main/load-tx-rlp.zkasm
@@ -34,7 +34,7 @@ loadTx_rlp:
                                         :CALL(addBatchHashData)
         A - 0xc0                        :JMPN(invalidTxRLP)
         A - 0xf8                        :JMPN(shortList)
-        ; do not allow lists over 2**24 bytes
+        ; do not allow lists over 2**24 bits
         ; Transaction could not have more than 300.000 due to smart contract limitation (keccaks counters)
         ; meaning that the RLP encoding is wrong
         A - 0xfb                        :JMPN(longList, invalidTxRLP)
@@ -171,7 +171,7 @@ dataREAD:
         A - 0x80                        :JMPN(veryShortData)
         A - 0x81                        :JMPN(endData)
         A - 0xb8                        :JMPN(shortData)
-        ; do not allow string over 2**24 bytes
+        ; do not allow string over 2**24 bits
         ; Transaction could not have more than 300.000 due to smart contract limitation (keccaks counters)
         ; meaning that the RLP encoding is wrong
         A - 0xbb                        :JMPN(longData, invalidTxRLP)
diff --git a/package.json b/package.json
index 8500ede4..2d3ef872 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
   },
   "devDependencies": {
     "@0xpolygonhermez/zkevm-proverjs": "github:0xPolygonHermez/zkevm-proverjs#864399e9e78ac6a24601c0e620909e1be02110aa",
-    "@0xpolygonhermez/zkevm-testvectors": "github:0xPolygonHermez/zkevm-testvectors#feature/add-test-mstorex",
+    "@0xpolygonhermez/zkevm-testvectors": "github:0xPolygonHermez/zkevm-testvectors#feature/update-forkid-2",
     "chai": "^4.3.6",
     "chalk": "^3.0.0",
     "eslint": "^8.25.0",