Add ethereumjs-tx dependency back

package-lock.json

@@ -11286,9 +11286,9 @@
       }
     },
     "ethereumjs-tx": {
-      "version": "1.3.3",
+      "version": "1.3.7",
-      "resolved": "https://registry.npmjs.org/ethereumjs-tx/-/ethereumjs-tx-1.3.3.tgz",
+      "resolved": "https://registry.npmjs.org/ethereumjs-tx/-/ethereumjs-tx-1.3.7.tgz",
-      "integrity": "sha1-7OBR0+/b53GtKlGNYWMsoqt17Ls=",
+      "integrity": "sha512-wvLMxzt1RPhAQ9Yi3/HKZTn0FZYpnsmQdbKYfUUpi4j1SEIcbkd9tndVjcPrufY3V7j2IebOpC00Zp2P/Ay2kA==",
       "requires": {
         "ethereum-common": "^0.0.18",
         "ethereumjs-util": "^5.0.0"
@@ -15780,6 +15780,23 @@
               "requires": {
                 "bn.js": "^4.11.8",
                 "ethereumjs-util": "^6.0.0"
+              },
+              "dependencies": {
+                "ethereumjs-util": {
+                  "version": "6.1.0",
+                  "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.1.0.tgz",
+                  "integrity": "sha512-URESKMFbDeJxnAxPppnk2fN6Y3BIatn9fwn76Lm8bQlt+s52TpG8dN9M66MLPuRAiAOIqL3dfwqWJf0sd0fL0Q==",
+                  "dev": true,
+                  "requires": {
+                    "bn.js": "^4.11.0",
+                    "create-hash": "^1.1.2",
+                    "ethjs-util": "0.1.6",
+                    "keccak": "^1.0.2",
+                    "rlp": "^2.0.0",
+                    "safe-buffer": "^5.1.1",
+                    "secp256k1": "^3.0.1"
+                  }
+                }
               }
             },
             "ethereumjs-block": {
@@ -19763,6 +19780,23 @@
               "requires": {
                 "bn.js": "^4.11.8",
                 "ethereumjs-util": "^6.0.0"
+              },
+              "dependencies": {
+                "ethereumjs-util": {
+                  "version": "6.1.0",
+                  "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.1.0.tgz",
+                  "integrity": "sha512-URESKMFbDeJxnAxPppnk2fN6Y3BIatn9fwn76Lm8bQlt+s52TpG8dN9M66MLPuRAiAOIqL3dfwqWJf0sd0fL0Q==",
+                  "dev": true,
+                  "requires": {
+                    "bn.js": "^4.11.0",
+                    "create-hash": "^1.1.2",
+                    "ethjs-util": "0.1.6",
+                    "keccak": "^1.0.2",
+                    "rlp": "^2.0.0",
+                    "safe-buffer": "^5.1.1",
+                    "secp256k1": "^3.0.1"
+                  }
+                }
               }
             },
             "ethereumjs-block": {

package.json

@@ -97,6 +97,7 @@
     "eth-sig-util": "^2.0.2",
     "eth-token-tracker": "^1.1.5",
     "ethereumjs-abi": "^0.6.4",
+    "ethereumjs-tx": "^1.3.7",
     "ethereumjs-util": "github:ethereumjs/ethereumjs-util#ac5d0908536b447083ea422b435da27f26615de9",
     "ethereumjs-wallet": "^0.6.0",
     "etherscan-link": "^1.0.2",