diff --git a/package.json b/package.json
index 6af449c74ef..a9d28089322 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
     "scryptsy": "2.0.0",
     "semver": "5.5.0",
     "trezor-connect": "7.0.1",
-    "trezor.js": "6.17.5",
+    "trezor.js": "9.0.0",
     "uuid": "3.2.1",
     "wallet-address-validator": "0.2.4",
     "whatwg-fetch": "2.0.3",
diff --git a/yarn.lock b/yarn.lock
index 746782c71fa..7f2c70a2cdb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -960,6 +960,31 @@
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/@sindresorhus/is/-/is-0.7.0.tgz#9a06f4f137ee84d7df0460c1fdb1135ffa6c50fd"
 
+"@trezor/utxo-lib@0.1.0":
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/@trezor/utxo-lib/-/utxo-lib-0.1.0.tgz#f7a60d514ab75bef2f2206200cf0317d2d8523b2"
+  integrity sha512-jkqFRKL++xTga3xUgu5pWw1ArzTfraK0unXuj31V9g6wu+MKPbvcXW1+tMOVh+WNZZ3QUSGSQNNflSyh+qD0Vw==
+  dependencies:
+    bech32 "0.0.3"
+    bigi "^1.4.0"
+    bip66 "^1.1.0"
+    bitcoin-ops "^1.3.0"
+    blake2b "git+https://github.com/BitGo/blake2b.git#6268e6dd678661e0acc4359e9171b97eb1ebf8ac"
+    bs58check "^2.0.0"
+    create-hash "^1.1.0"
+    create-hmac "^1.1.3"
+    debug "~3.1.0"
+    ecurve "^1.0.0"
+    merkle-lib "^2.0.10"
+    pushdata-bitcoin "^1.0.1"
+    randombytes "^2.0.1"
+    safe-buffer "^5.0.1"
+    typeforce "^1.11.3"
+    varuint-bitcoin "^1.0.4"
+    wif "^2.0.1"
+  optionalDependencies:
+    secp256k1 "^3.5.2"
+
 "@types/bip39@2.4.0":
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/@types/bip39/-/bip39-2.4.0.tgz#eee31a14abc8ebbb41a1ff14575c447b18346cbc"
@@ -2405,9 +2430,10 @@ bcrypt-pbkdf@^1.0.0:
   dependencies:
     tweetnacl "^0.14.3"
 
-bech32@^1.1.2:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/bech32/-/bech32-1.1.3.tgz#bd47a8986bbb3eec34a56a097a84b8d3e9a2dfcd"
+bech32@0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/bech32/-/bech32-0.0.3.tgz#736747c4a6531c5d8937d0400498de30e93b2f9c"
+  integrity sha512-O+K1w8P/aAOLcYwwQ4sbiPYZ51ZIW95lnS4/6nE8Aib/z+OOddQIIPdu2qi94qGDp4HhYy/wJotttXKkak1lXg==
 
 beeper@^1.0.0:
   version "1.1.1"
@@ -2512,7 +2538,7 @@ bip39@2.5.0:
     safe-buffer "^5.0.1"
     unorm "^1.3.3"
 
-bip66@^1.1.0, bip66@^1.1.3:
+bip66@^1.1.0, bip66@^1.1.3, bip66@^1.1.5:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/bip66/-/bip66-1.1.5.tgz#01fa8748785ca70955d5011217d1b3139969ca22"
   dependencies:
@@ -2522,26 +2548,6 @@ bitcoin-ops@^1.3.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/bitcoin-ops/-/bitcoin-ops-1.4.1.tgz#e45de620398e22fd4ca6023de43974ff42240278"
 
-bitcoinjs-lib-zcash@^3.0.0, bitcoinjs-lib-zcash@^3.3.2:
-  version "3.4.1"
-  resolved "https://registry.yarnpkg.com/bitcoinjs-lib-zcash/-/bitcoinjs-lib-zcash-3.4.1.tgz#ea440857188ed3168f66ae8f6ecba603c53e3f22"
-  dependencies:
-    bech32 "^1.1.2"
-    bigi "^1.4.0"
-    bip66 "^1.1.0"
-    bitcoin-ops "^1.3.0"
-    bs58check "^2.0.0"
-    create-hash "^1.1.0"
-    create-hmac "^1.1.3"
-    ecurve "^1.0.0"
-    merkle-lib "^2.0.10"
-    pushdata-bitcoin "^1.0.1"
-    randombytes "^2.0.1"
-    safe-buffer "^5.0.1"
-    typeforce "^1.11.3"
-    varuint-bitcoin "^1.0.4"
-    wif "^2.0.1"
-
 bl@^1.0.0:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/bl/-/bl-1.2.2.tgz#a160911717103c07410cef63ef51b397c025af9c"
@@ -2549,6 +2555,21 @@ bl@^1.0.0:
     readable-stream "^2.3.5"
     safe-buffer "^5.1.1"
 
+"blake2b-wasm@https://github.com/BitGo/blake2b-wasm#193cdb71656c1a6c7f89b05d0327bb9b758d071b":
+  version "2.0.0"
+  uid "193cdb71656c1a6c7f89b05d0327bb9b758d071b"
+  resolved "https://github.com/BitGo/blake2b-wasm#193cdb71656c1a6c7f89b05d0327bb9b758d071b"
+  dependencies:
+    nanoassert "^1.0.0"
+
+"blake2b@git+https://github.com/BitGo/blake2b.git#6268e6dd678661e0acc4359e9171b97eb1ebf8ac":
+  version "2.1.3"
+  uid "6268e6dd678661e0acc4359e9171b97eb1ebf8ac"
+  resolved "git+https://github.com/BitGo/blake2b.git#6268e6dd678661e0acc4359e9171b97eb1ebf8ac"
+  dependencies:
+    blake2b-wasm "https://github.com/BitGo/blake2b-wasm#193cdb71656c1a6c7f89b05d0327bb9b758d071b"
+    nanoassert "^1.0.0"
+
 block-stream@*:
   version "0.0.9"
   resolved "https://registry.yarnpkg.com/block-stream/-/block-stream-0.0.9.tgz#13ebfe778a03205cfe03751481ebb4b3300c126a"
@@ -3905,7 +3926,7 @@ create-error-class@^3.0.0, create-error-class@^3.0.1:
   dependencies:
     capture-stack-trace "^1.0.0"
 
-create-hash@^1.1.0, create-hash@^1.1.1, create-hash@^1.1.2:
+create-hash@^1.1.0, create-hash@^1.1.1, create-hash@^1.1.2, create-hash@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/create-hash/-/create-hash-1.2.0.tgz#889078af11a63756bcfb59bd221996be3a9ef196"
   dependencies:
@@ -4239,7 +4260,7 @@ debug@2.6.9, debug@^2.1.2, debug@^2.1.3, debug@^2.2.0, debug@^2.3.3, debug@^2.6.
   dependencies:
     ms "2.0.0"
 
-debug@=3.1.0:
+debug@=3.1.0, debug@~3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
   integrity sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==
@@ -5000,6 +5021,19 @@ elliptic@^6.0.0, elliptic@^6.2.3:
     minimalistic-assert "^1.0.0"
     minimalistic-crypto-utils "^1.0.0"
 
+elliptic@^6.5.2:
+  version "6.5.2"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.2.tgz#05c5678d7173c049d8ca433552224a495d0e3762"
+  integrity sha512-f4x70okzZbIQl/NSRLkI/+tteV/9WqL98zx+SQ69KbXxmVrmjwsNUPn/gYJJ0sHvEak24cZgHIPegRePAtA/xw==
+  dependencies:
+    bn.js "^4.4.0"
+    brorand "^1.0.1"
+    hash.js "^1.0.0"
+    hmac-drbg "^1.0.0"
+    inherits "^2.0.1"
+    minimalistic-assert "^1.0.0"
+    minimalistic-crypto-utils "^1.0.0"
+
 emojis-list@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-2.1.0.tgz#4daa4d9db00f9819880c79fa457ae5b09a1fd389"
@@ -5302,7 +5336,7 @@ event-lite@^0.1.1:
 
 event-stream@~3.3.0:
   version "3.3.4"
-  resolved "http://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
+  resolved "https://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
   dependencies:
     duplexer "~0.1.1"
     from "~0"
@@ -9568,7 +9602,7 @@ nan@^2.0.5, nan@^2.0.8, nan@^2.10.0, nan@^2.2.1, nan@^2.3.0:
   version "2.10.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
 
-nan@^2.12.1:
+nan@^2.12.1, nan@^2.14.0:
   version "2.14.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.0.tgz#7818f722027b2459a86f0295d434d1fc2336c52c"
   integrity sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==
@@ -9582,6 +9616,11 @@ nan@^2.9.2:
   version "2.11.1"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.11.1.tgz#90e22bccb8ca57ea4cd37cc83d3819b52eea6766"
 
+nanoassert@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/nanoassert/-/nanoassert-1.1.0.tgz#4f3152e09540fde28c76f44b19bbcd1d5a42478d"
+  integrity sha1-TzFS4JVA/eKMdvRLGbvNHVpCR40=
+
 nanoid@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-2.0.1.tgz#deb55cac196e3f138071911dabbc3726eb048864"
@@ -10147,7 +10186,7 @@ once@^1.3.0, once@^1.3.1, once@^1.3.3, once@^1.4.0:
 
 onetime@^1.0.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+  resolved "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
 
 onetime@^2.0.0:
   version "2.0.1"
@@ -11320,13 +11359,7 @@ randomatic@^1.1.3:
     is-number "^3.0.0"
     kind-of "^4.0.0"
 
-randombytes@^2.0.0, randombytes@^2.0.1, randombytes@^2.0.5:
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/randombytes/-/randombytes-2.0.6.tgz#d302c522948588848a8d300c932b44c24231da80"
-  dependencies:
-    safe-buffer "^5.1.0"
-
-randombytes@^2.0.6:
+randombytes@^2.0.0, randombytes@^2.0.1, randombytes@^2.0.5, randombytes@^2.0.6:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/randombytes/-/randombytes-2.1.0.tgz#df6f84372f0270dc65cdf6291349ab7a473d4f2a"
   integrity sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==
@@ -11460,7 +11493,7 @@ react-dom@^15.3.2:
 
 react-fast-compare@^1.0.0:
   version "1.0.0"
-  resolved "http://registry.npmjs.org/react-fast-compare/-/react-fast-compare-1.0.0.tgz#813a039155e49b43ceffe99528fe5e9d97a6c938"
+  resolved "https://registry.npmjs.org/react-fast-compare/-/react-fast-compare-1.0.0.tgz#813a039155e49b43ceffe99528fe5e9d97a6c938"
 
 react-hot-loader@4.8.4:
   version "4.8.4"
@@ -12590,6 +12623,20 @@ secp256k1@^3.0.1:
     nan "^2.2.1"
     safe-buffer "^5.1.0"
 
+secp256k1@^3.5.2:
+  version "3.8.0"
+  resolved "https://registry.yarnpkg.com/secp256k1/-/secp256k1-3.8.0.tgz#28f59f4b01dbee9575f56a47034b7d2e3b3b352d"
+  integrity sha512-k5ke5avRZbtl9Tqx/SA7CbY3NF6Ro+Sj9cZxezFzuBlLDmyqPiL8hJJ+EmzD8Ig4LUDByHJ3/iPOVoRixs/hmw==
+  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"
+    nan "^2.14.0"
+    safe-buffer "^5.1.2"
+
 seek-bzip@^1.0.3, seek-bzip@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/seek-bzip/-/seek-bzip-1.0.5.tgz#cfe917cb3d274bcffac792758af53173eb1fabdc"
@@ -13832,12 +13879,12 @@ trezor-connect@7.0.1:
     events "^3.0.0"
     whatwg-fetch "^3.0.0"
 
-trezor-link@1.5.2:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/trezor-link/-/trezor-link-1.5.2.tgz#a87defc5ea4d0e882c5a8623b554673d62cdabbb"
+trezor-link@1.6.0-bridge-fallback.2:
+  version "1.6.0-bridge-fallback.2"
+  resolved "https://registry.yarnpkg.com/trezor-link/-/trezor-link-1.6.0-bridge-fallback.2.tgz#e749f59976f8fa3ba3f661000066be2c9e139d63"
+  integrity sha512-hSZsHSAKpw2AUPvc4L2U/eVa/92hYcL6ml0XaYqUbWStTDpm1h1IJciG2evplIZz25m90PapccV9l4z+v9GUxw==
   dependencies:
     bigi "^1.4.1"
-    bitcoinjs-lib-zcash "^3.0.0"
     ecurve "^1.0.3"
     json-stable-stringify "^1.0.1"
     node-fetch "^1.6.0"
@@ -13846,17 +13893,18 @@ trezor-link@1.5.2:
     semver-compare "^1.0.0"
     whatwg-fetch "0.11.0"
 
-trezor.js@6.17.5:
-  version "6.17.5"
-  resolved "https://registry.yarnpkg.com/trezor.js/-/trezor.js-6.17.5.tgz#cc080fce430c0ad921474ef210da2eceab8ec1f1"
+trezor.js@9.0.0:
+  version "9.0.0"
+  resolved "https://registry.yarnpkg.com/trezor.js/-/trezor.js-9.0.0.tgz#a569e8053239b084800b1a3027bd54e3ee708333"
+  integrity sha512-hUtrz5Kk+AtI1B4q+JZb8meJmEaUJU+4I1pe7WhrSGIJ519P59aDFT0gY9cgfLOVmW7EE+mqS5TjopI2g0r9TA==
   dependencies:
+    "@trezor/utxo-lib" "0.1.0"
     bchaddrjs "^0.2.1"
-    bitcoinjs-lib-zcash "^3.3.2"
     ecurve "^1.0.2"
     node-fetch "^1.6.0"
     randombytes "^2.0.1"
     semver-compare "1.0.0"
-    trezor-link "1.5.2"
+    trezor-link "1.6.0-bridge-fallback.2"
     unorm "^1.3.3"
     whatwg-fetch "0.11.0"