diff --git a/package-lock.json b/package-lock.json
index e082f35..e3b42f3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "multichain-wallet-sdk",
-  "version": "1.4.2",
+  "version": "1.4.3",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "multichain-wallet-sdk",
-      "version": "1.4.2",
+      "version": "1.4.3",
       "license": "ISC",
       "dependencies": {
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@@ -34,7 +34,7 @@
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         "bip173": "^1.1.4",
         "bip32": "^2.0.4",
-        "bip39": "^3.0.4",
+        "bip39": "3.0.4",
         "bip44": "0.0.1",
         "bitcoin-client": "^1.3.0",
         "bitcoin-core": "^4.1.0",
@@ -45,7 +45,7 @@
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         "bs58": "^5.0.0",
-        "buffer": "^4.9.1",
+        "buffer": "^6.0.3",
         "buffer-layout": "^1.2.2",
         "cardano-wallet": "^1.2.2",
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-          "type": "github",
-          "url": "https://github.com/sponsors/feross"
-        },
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-          "url": "https://www.patreon.com/feross"
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@@ -7970,29 +7947,6 @@
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-          "type": "github",
-          "url": "https://github.com/sponsors/feross"
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-          "url": "https://www.patreon.com/feross"
-        },
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@@ -8050,29 +8004,6 @@
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@@ -11163,29 +11094,6 @@
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+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-6.0.3.tgz",
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+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
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+          "type": "consulting",
+          "url": "https://feross.org/support"
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-        "ieee754": "^1.1.4",
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@@ -25766,29 +25664,6 @@
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@@ -26390,6 +26265,16 @@
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+    "node_modules/react-native-bip39/node_modules/buffer": {
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+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-4.9.2.tgz",
+      "integrity": "sha512-xq+q3SRMOxGivLhBNaUdC64hDTQwejJ+H0T/NB1XMtTVEwNTrfFF3gAxiyW0Bu/xWEGhjVKgUcMhCrUy2+uCWg==",
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+        "ieee754": "^1.1.4",
+        "isarray": "^1.0.0"
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@@ -26421,6 +26306,16 @@
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+    "node_modules/react-native-bitcoinjs-lib/node_modules/buffer": {
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+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-4.9.2.tgz",
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+        "ieee754": "^1.1.4",
+        "isarray": "^1.0.0"
+      }
+    },
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@@ -26489,6 +26384,16 @@
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       }
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+    "node_modules/react-native-randombytes/node_modules/buffer": {
+      "version": "4.9.2",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-4.9.2.tgz",
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+        "ieee754": "^1.1.4",
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@@ -27342,29 +27247,6 @@
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@@ -54153,6 +53978,16 @@
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@@ -54183,6 +54018,16 @@
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@@ -54241,6 +54086,18 @@
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@@ -54696,17 +54553,6 @@
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-        "buffer": {
-          "version": "6.0.3",
-          "resolved": "https://registry.npmjs.org/buffer/-/buffer-6.0.3.tgz",
-          "integrity": "sha512-FTiCpNxtwiZZHEZbcbTIcZjERVICn9yq/pDFkTl95/AxzD1naBctN7YO68riM/gLSDY7sdrMby8hofADYuuqOA==",
-          "requires": {
-            "base64-js": "^1.3.1",
-            "ieee754": "^1.2.1"
-          }
-        }
       }
     },
     "ripple-bip32": {
diff --git a/package.json b/package.json
index 0f6c0f5..6495d42 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "bluebird": "^3.7.2",
     "browserify-zlib": "^0.1.4",
     "bs58": "^5.0.0",
-    "buffer": "^4.9.1",
+    "buffer": "^6.0.3",
     "buffer-layout": "^1.2.2",
     "cardano-wallet": "^1.2.2",
     "cardano-wallet-js": "^1.4.0",