diff --git a/spedn-js/rts-bchjs/package-lock.json b/spedn-js/rts-bchjs/package-lock.json
index 418d443..2fbbecd 100644
--- a/spedn-js/rts-bchjs/package-lock.json
+++ b/spedn-js/rts-bchjs/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@spedn/rts-bchjs",
-  "version": "3.1.1",
+  "version": "4.0.0-rc.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@spedn/rts-bchjs",
-      "version": "3.1.1",
+      "version": "4.0.0-rc.1",
       "funding": [
         "https://spedn.pl/#support",
         "bitcoincash:qrc2jhalczuka8q3dvk0g8mnkqx79wxp9gvvqvg7qt"
@@ -14,7 +14,7 @@
       "license": "MIT",
       "dependencies": {
         "@psf/bch-js": "^6.7.4",
-        "@spedn/rts": "^4.0.0-rc.0"
+        "@spedn/rts": "^4.0.0-rc.1"
       },
       "devDependencies": {
         "@types/node": "^14.0.27",
@@ -126,14 +126,14 @@
       }
     },
     "node_modules/@spedn/rts": {
-      "version": "4.0.0-rc.0",
-      "resolved": "https://registry.npmjs.org/@spedn/rts/-/rts-4.0.0-rc.0.tgz",
-      "integrity": "sha512-zE1LRrt0wEXcthBPl+yulTq98KxZMc+QLhr5x2WG83uUfyWweETGx2bTpmrnPZp6qIXkIHrWShrAXF6prh+xmw==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@spedn/rts/-/rts-4.0.0.tgz",
+      "integrity": "sha512-ULHohLTrbidK4mU87KyiV2bnBJhU7XnxMDQAiRmRBsjT7PwYtD5Hgf3tfyG1kIAfBbpQp/Gng9QGdHopaQaemw==",
       "funding": [
         "https://spedn.pl/#support",
+        "ecash:qp8x5wakcts248drk5apn4k09a53qclcevjayr77xh",
         "bitcoincash:qrc2jhalczuka8q3dvk0g8mnkqx79wxp9gvvqvg7qt"
       ],
-      "license": "MIT",
       "dependencies": {
         "lodash": "^4.17.21",
         "varuint-bitcoin": "1.1.2"
@@ -333,10 +333,9 @@
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-      "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.9.tgz",
-      "integrity": "sha512-E6QoYqCKZfgatHTdHzs1RRKP7ip4vvm+EyRUeE2RF0NblwVvb0p6jSVeNTOFxPn26QXN2o6SMfNxKp6kU8zQaw==",
-      "license": "MIT"
+      "version": "4.12.0",
+      "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.0.tgz",
+      "integrity": "sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA=="
     },
     "node_modules/brace-expansion": {
       "version": "1.1.11",
@@ -351,8 +350,7 @@
     "node_modules/brorand": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/brorand/-/brorand-1.1.0.tgz",
-      "integrity": "sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8= sha512-cKV8tMCEpQs4hK/ik71d6LrPOnpkpGBR0wzxqr68g2m/LB2GxVYQroAjMJZRVM1Y4BCjCKc3vAamxSzOY2RP+w==",
-      "license": "MIT"
+      "integrity": "sha512-cKV8tMCEpQs4hK/ik71d6LrPOnpkpGBR0wzxqr68g2m/LB2GxVYQroAjMJZRVM1Y4BCjCKc3vAamxSzOY2RP+w=="
     },
     "node_modules/browserify-aes": {
       "version": "1.2.0",
@@ -589,10 +587,9 @@
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     },
     "node_modules/elliptic": {
-      "version": "6.5.5",
-      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.5.tgz",
-      "integrity": "sha512-7EjbcmUm17NQFu4Pmgmq2olYMj8nwMnpcddByChSUjArp8F5DQWcIcpriwO4ZToLNAJig0yiyjswfyGNje/ixw==",
-      "license": "MIT",
+      "version": "6.5.7",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.7.tgz",
+      "integrity": "sha512-ESVCtTwiA+XhY3wyh24QqRGBoP3rEdDUl3EDUUo9tft074fi19IrdpH7hLCMMP3CIj7jb3W96rn8lt/BqIlt5Q==",
       "dependencies": {
         "bn.js": "^4.11.9",
         "brorand": "^1.1.0",
@@ -888,7 +885,6 @@
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-      "license": "MIT",
       "dependencies": {
         "inherits": "^2.0.3",
         "minimalistic-assert": "^1.0.1"
@@ -909,8 +905,7 @@
     "node_modules/hmac-drbg": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/hmac-drbg/-/hmac-drbg-1.0.1.tgz",
-      "integrity": "sha1-0nRXAQJabHdabFRXk+1QL8DGSaE= sha512-Tti3gMqLdZfhOQY1Mzf/AanLiqh1WTiJgEj26ZuYQ9fbkLomzGchCws4FyrSd4VkpBfiNhaE1On+lOz894jvXg==",
-      "license": "MIT",
+      "integrity": "sha512-Tti3gMqLdZfhOQY1Mzf/AanLiqh1WTiJgEj26ZuYQ9fbkLomzGchCws4FyrSd4VkpBfiNhaE1On+lOz894jvXg==",
       "dependencies": {
         "hash.js": "^1.0.3",
         "minimalistic-assert": "^1.0.0",
@@ -1152,14 +1147,12 @@
     "node_modules/minimalistic-assert": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz",
-      "integrity": "sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A==",
-      "license": "ISC"
+      "integrity": "sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A=="
     },
     "node_modules/minimalistic-crypto-utils": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz",
-      "integrity": "sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo= sha512-JIYlbt6g8i5jKfJ3xz7rF0LXmv2TkDxBLUkiBeZ7bAx4GnnNMr8xFpGnOxn6GhTEHx3SjRrZEoU+j04prX1ktg==",
-      "license": "MIT"
+      "integrity": "sha512-JIYlbt6g8i5jKfJ3xz7rF0LXmv2TkDxBLUkiBeZ7bAx4GnnNMr8xFpGnOxn6GhTEHx3SjRrZEoU+j04prX1ktg=="
     },
     "node_modules/minimatch": {
       "version": "3.1.2",
@@ -1413,18 +1406,17 @@
       "license": "MIT"
     },
     "node_modules/secp256k1": {
-      "version": "3.8.0",
-      "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-3.8.0.tgz",
-      "integrity": "sha512-k5ke5avRZbtl9Tqx/SA7CbY3NF6Ro+Sj9cZxezFzuBlLDmyqPiL8hJJ+EmzD8Ig4LUDByHJ3/iPOVoRixs/hmw==",
+      "version": "3.8.1",
+      "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-3.8.1.tgz",
+      "integrity": "sha512-tArjQw2P0RTdY7QmkNehgp6TVvQXq6ulIhxv8gaH6YubKG/wxxAoNKcbuXjDhybbc+b2Ihc7e0xxiGN744UIiQ==",
       "hasInstallScript": true,
-      "license": "MIT",
       "dependencies": {
         "bindings": "^1.5.0",
         "bip66": "^1.1.5",
         "bn.js": "^4.11.8",
         "create-hash": "^1.2.0",
         "drbg.js": "^1.0.1",
-        "elliptic": "^6.5.2",
+        "elliptic": "^6.5.7",
         "nan": "^2.14.0",
         "safe-buffer": "^5.1.2"
       },