diff --git a/package-lock.json b/package-lock.json
index ffff0d1..1e83acf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@keep-network/tbtc.js",
-  "version": "0.12.0-pre",
+  "version": "0.12.0-rc",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -25,9 +25,9 @@
       }
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-      "resolved": "https://registry.npmjs.org/@keep-network/keep-core/-/keep-core-0.12.0-pre.6.tgz",
-      "integrity": "sha512-jSFrVpxJrI3eBdc7f8QSNA0hx+8sZbujo0TiPNgWJkokfMKmq9sLjXZZKAeZYjwouUjKF+JasDNX6hjqE4taCg==",
+      "version": "0.12.0-rc.0",
+      "resolved": "https://registry.npmjs.org/@keep-network/keep-core/-/keep-core-0.12.0-rc.0.tgz",
+      "integrity": "sha512-BEZTISatWuLl3gALCNNWi1mjlOMnpwjFWvwCz2tPAr2EcHyuRzRqPeYxrEFeB+gIbBzWSRPL957O79nCmOqA0Q==",
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@@ -42,11 +42,11 @@
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-      "resolved": "https://registry.npmjs.org/@keep-network/keep-ecdsa/-/keep-ecdsa-0.12.0-pre.2.tgz",
-      "integrity": "sha512-Cz7y1GLMv27p/W8ksK8hf59SWzd65tQuoCnCCNJ+eyWgZIS6q6QlC6ikudUWUg6TK+BFfsSbkLTyHU6DUchRag==",
+      "version": "0.12.0-rc.0",
+      "resolved": "https://registry.npmjs.org/@keep-network/keep-ecdsa/-/keep-ecdsa-0.12.0-rc.0.tgz",
+      "integrity": "sha512-MYREAB46eBdrBDRTX7iiEfm8xjUZQWQUrYhEiAQzg8j3sTMpFQ+l+VR0GsPj+bcvXYzN9rGSgCLrhx3NhIcubA==",
       "requires": {
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+        "@keep-network/keep-core": ">0.12.0-rc <0.12.0",
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         "@openzeppelin/upgrades": "^2.7.2",
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@@ -63,11 +63,11 @@
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+      "version": "0.12.0-rc.0",
+      "resolved": "https://registry.npmjs.org/@keep-network/tbtc/-/tbtc-0.12.0-rc.0.tgz",
+      "integrity": "sha512-AO6o0s6l44BvWx86b7TOxj/L5CyBEMyXLfS1L59ey6LYM1nFmcTMaNqGXJ8DmDxGCTXQAVhUaANi5aY6bbkq6g==",
       "requires": {
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+        "@keep-network/keep-ecdsa": ">0.12.0-rc <0.12.0",
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@@ -76,6 +76,58 @@
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         "solc": "^0.5.10"
+      },
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+          "resolved": "https://registry.npmjs.org/commander/-/commander-3.0.2.tgz",
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+            "jsonfile": "^2.1.0",
+            "klaw": "^1.0.0",
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+          "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.8.0.tgz",
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+        },
+        "jsonfile": {
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+          "integrity": "sha1-NzaitCi4e72gzIO1P6PWM6NcKug=",
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+          "resolved": "https://registry.npmjs.org/solc/-/solc-0.5.17.tgz",
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+        }
       }
     },
     "@openzeppelin/contracts": {
@@ -7508,24 +7560,31 @@
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+      "version": "0.4.26",
+      "resolved": "https://registry.npmjs.org/solc/-/solc-0.4.26.tgz",
+      "integrity": "sha512-o+c6FpkiHd+HPjmjEVpQgH7fqZ14tJpXhho+/bQXlXbliLIS/xjXb42Vxh+qQY1WCSTMQ0+a5vR9vi0MfhU6mA==",
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         "memorystream": "^0.3.1",
-        "require-from-string": "^2.0.0",
-        "semver": "^5.5.0",
-        "tmp": "0.0.33"
+        "require-from-string": "^1.1.0",
+        "semver": "^5.3.0",
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-          "resolved": "https://registry.npmjs.org/commander/-/commander-3.0.2.tgz",
-          "integrity": "sha512-Gar0ASD4BDyKC4hl4DwHqDrmvjoxWKZigVnAbn5H1owvm4CxCPdb0HQDehwNYMJpla5+M2tPmPARzhtYuwpHow=="
+        "camelcase": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-3.0.0.tgz",
+          "integrity": "sha1-MvxLn82vhF/N9+c7uXysImHwqwo="
+        },
+        "cliui": {
+          "version": "3.2.0",
+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-3.2.0.tgz",
+          "integrity": "sha1-EgYBU3qRbSmUD5NNo7SNWFo5IT0=",
+          "requires": {
+            "string-width": "^1.0.1",
+            "strip-ansi": "^3.0.1",
+            "wrap-ansi": "^2.0.0"
+          }
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@@ -7539,10 +7598,10 @@
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+        "get-caller-file": {
+          "version": "1.0.3",
+          "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-1.0.3.tgz",
+          "integrity": "sha512-3t6rVToeoZfYSGd8YoLFR2DJkiQrIiUrGcjvFX2mDw3bn6k2OtwHN0TNCLbBO+w8qTvimhDkv+LSscbJY1vE6w=="
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@@ -7552,10 +7611,59 @@
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+        "require-main-filename": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-1.0.1.tgz",
+          "integrity": "sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE="
+        },
+        "which-module": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/which-module/-/which-module-1.0.0.tgz",
+          "integrity": "sha1-u6Y8qGGUiZT/MHc2CJ47lgJsKk8="
+        },
+        "wrap-ansi": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
+          "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
+          "requires": {
+            "string-width": "^1.0.1",
+            "strip-ansi": "^3.0.1"
+          }
+        },
+        "y18n": {
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
+          "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE="
+        },
+        "yargs": {
+          "version": "4.8.1",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-4.8.1.tgz",
+          "integrity": "sha1-wMQpJMpKqmsObaFznfshZDn53cA=",
+          "requires": {
+            "cliui": "^3.2.0",
+            "decamelize": "^1.1.1",
+            "get-caller-file": "^1.0.1",
+            "lodash.assign": "^4.0.3",
+            "os-locale": "^1.4.0",
+            "read-pkg-up": "^1.0.1",
+            "require-directory": "^2.1.1",
+            "require-main-filename": "^1.0.1",
+            "set-blocking": "^2.0.0",
+            "string-width": "^1.0.1",
+            "which-module": "^1.0.0",
+            "window-size": "^0.2.0",
+            "y18n": "^3.2.1",
+            "yargs-parser": "^2.4.1"
+          }
+        },
+        "yargs-parser": {
+          "version": "2.4.1",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-2.4.1.tgz",
+          "integrity": "sha1-hVaN488VD/SfpRgl8DqMiA3cxcQ=",
+          "requires": {
+            "camelcase": "^3.0.0",
+            "lodash.assign": "^4.0.6"
+          }
         }
       }
     },
@@ -8520,21 +8628,6 @@
           "version": "git+https://github.com/debris/bignumber.js.git#c7a38de919ed75e6fb6ba38051986e294b328df9",
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-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-3.0.0.tgz",
-          "integrity": "sha1-MvxLn82vhF/N9+c7uXysImHwqwo="
-        },
-        "cliui": {
-          "version": "3.2.0",
-          "resolved": "https://registry.npmjs.org/cliui/-/cliui-3.2.0.tgz",
-          "integrity": "sha1-EgYBU3qRbSmUD5NNo7SNWFo5IT0=",
-          "requires": {
-            "string-width": "^1.0.1",
-            "strip-ansi": "^3.0.1",
-            "wrap-ansi": "^2.0.0"
-          }
-        },
         "ethereum-common": {
           "version": "0.0.18",
           "resolved": "https://registry.npmjs.org/ethereum-common/-/ethereum-common-0.0.18.tgz",
@@ -8563,31 +8656,6 @@
             "secp256k1": "^3.0.1"
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-        "fs-extra": {
-          "version": "0.30.0",
-          "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-0.30.0.tgz",
-          "integrity": "sha1-8jP/zAjU2n1DLapEl3aYnbHfk/A=",
-          "requires": {
-            "graceful-fs": "^4.1.2",
-            "jsonfile": "^2.1.0",
-            "klaw": "^1.0.0",
-            "path-is-absolute": "^1.0.0",
-            "rimraf": "^2.2.8"
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-          "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-1.0.3.tgz",
-          "integrity": "sha512-3t6rVToeoZfYSGd8YoLFR2DJkiQrIiUrGcjvFX2mDw3bn6k2OtwHN0TNCLbBO+w8qTvimhDkv+LSscbJY1vE6w=="
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-          "requires": {
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-          }
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         "keccak": {
           "version": "1.4.0",
           "resolved": "https://registry.npmjs.org/keccak/-/keccak-1.4.0.tgz",
@@ -8599,23 +8667,6 @@
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-          "integrity": "sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE="
-        },
-        "solc": {
-          "version": "0.4.26",
-          "resolved": "https://registry.npmjs.org/solc/-/solc-0.4.26.tgz",
-          "integrity": "sha512-o+c6FpkiHd+HPjmjEVpQgH7fqZ14tJpXhho+/bQXlXbliLIS/xjXb42Vxh+qQY1WCSTMQ0+a5vR9vi0MfhU6mA==",
-          "requires": {
-            "fs-extra": "^0.30.0",
-            "memorystream": "^0.3.1",
-            "require-from-string": "^1.1.0",
-            "semver": "^5.3.0",
-            "yargs": "^4.7.1"
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           "resolved": "https://registry.npmjs.org/utf8/-/utf8-2.1.2.tgz",
@@ -8631,55 +8682,6 @@
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             "xmlhttprequest": "*"
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-          "resolved": "https://registry.npmjs.org/which-module/-/which-module-1.0.0.tgz",
-          "integrity": "sha1-u6Y8qGGUiZT/MHc2CJ47lgJsKk8="
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-        "y18n": {
-          "version": "3.2.1",
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-          "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE="
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-          "resolved": "https://registry.npmjs.org/yargs/-/yargs-4.8.1.tgz",
-          "integrity": "sha1-wMQpJMpKqmsObaFznfshZDn53cA=",
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diff --git a/package.json b/package.json
index c43ab38..9a9277c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@keep-network/tbtc.js",
-  "version": "0.12.0-pre",
+  "version": "0.12.0-rc",
   "type": "module",
   "description": "tbtc.js provides JS bindings to the tBTC system that establishes a TBTC ERC20 token supply-pegged to BTC.",
   "repository": {
@@ -28,8 +28,8 @@
   "author": "Antonio Salazar Cardozo <antonio@thesis.co>",
   "license": "MIT",
   "dependencies": {
-    "@keep-network/tbtc": ">0.12.0-pre <0.12.0-rc",
-    "@keep-network/keep-ecdsa": ">0.12.0-pre <0.12.0-rc",
+    "@keep-network/tbtc": ">0.12.0-rc <0.12.0",
+    "@keep-network/keep-ecdsa": ">0.12.0-rc <0.12.0",
     "@truffle/contract": "^4.1.8",
     "bcoin": "git+https://github.com/bcoin-org/bcoin.git#8851582",
     "bcrypto": "^4.1.0",