diff --git a/package.json b/package.json
index 73659d909..047911146 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "@material-ui/core": "1.0.0",
     "@sentry/browser": "^4.1.1",
     "@zxing/library": "^0.8.0",
-    "abi-decoder": "^2.2.0",
+    "abi-decoder": "^1.2.0",
     "abortcontroller-polyfill": "^1.3.0",
     "asmcrypto.js": "^2.3.2",
     "await-semaphore": "^0.1.1",
diff --git a/yarn.lock b/yarn.lock
index 22f241c21..5e9578a16 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3071,13 +3071,12 @@ abbrev@1:
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
   integrity sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==
 
-abi-decoder@^2.2.0:
-  version "2.2.2"
-  resolved "https://registry.yarnpkg.com/abi-decoder/-/abi-decoder-2.2.2.tgz#aa1e6679f43c6c6be5d2a3fb20e9578e14e44440"
-  integrity sha512-viRNIt7FzBC9/Y99AVKsAvEMJsIe9Yc/PMrqYT7edSlZ4EnbXlxAq7hS08XTeMzjMP6DpoVrYyCwhSCskCPQqA==
+abi-decoder@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/abi-decoder/-/abi-decoder-1.2.0.tgz#c42882dbb91b444805f0cd203a87a5cc3c22f4a8"
+  integrity sha512-y2OKSEW4gf2838Eavc56vQY9V46zaXkf3Jl1WpTfUBbzAVrXSr4JRZAAWv55Tv9s5WNz1rVgBgz5d2aJIL1QCg==
   dependencies:
-    web3-eth-abi "^1.2.1"
-    web3-utils "^1.2.1"
+    web3 "^0.18.4"
 
 abort-controller@^3.0.0:
   version "3.0.0"
@@ -5339,6 +5338,10 @@ bignumber.js@^9.0.0:
   resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-9.0.0.tgz#805880f84a329b5eac6e7cb6f8274b6d82bdf075"
   integrity sha512-t/OYhhJ2SD+YGBQcjY8GzzDHEk9f3nerxjtfa6tlMXfe7frs/WozhvCNoGvpM0P3bNf3Gq5ZRMlGr5f3r4/N8A==
 
+"bignumber.js@git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2":
+  version "2.0.7"
+  resolved "git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2"
+
 "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git":
   version "2.0.7"
   resolved "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934"
@@ -10336,13 +10339,6 @@ ethashjs@~0.0.7:
     ethereumjs-util "^4.0.1"
     miller-rabin "^4.0.0"
 
-ethereum-bloom-filters@^1.0.6:
-  version "1.0.6"
-  resolved "https://registry.yarnpkg.com/ethereum-bloom-filters/-/ethereum-bloom-filters-1.0.6.tgz#9cdebb3ec20de96ec4a434c6bad6ea5a513037aa"
-  integrity sha512-dE9CGNzgOOsdh7msZirvv8qjHtnHpvBlKe2647kM8v+yeF71IRso55jpojemvHV+jMjr48irPWxMRaHuOWzAFA==
-  dependencies:
-    js-sha3 "^0.8.0"
-
 ethereum-common@0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/ethereum-common/-/ethereum-common-0.2.0.tgz#13bf966131cce1eeade62a1b434249bb4cb120ca"
@@ -21912,7 +21908,7 @@ randombytes@^2.0.0, randombytes@^2.0.5:
   dependencies:
     safe-buffer "^5.1.0"
 
-randombytes@^2.0.1, randombytes@^2.0.3, randombytes@^2.0.6, randombytes@^2.1.0:
+randombytes@^2.0.1, randombytes@^2.0.3, randombytes@^2.0.6:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/randombytes/-/randombytes-2.1.0.tgz#df6f84372f0270dc65cdf6291349ab7a473d4f2a"
   integrity sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==
@@ -27615,15 +27611,6 @@ web3-eth-abi@1.2.1:
     underscore "1.9.1"
     web3-utils "1.2.1"
 
-web3-eth-abi@^1.2.1:
-  version "1.2.4"
-  resolved "https://registry.yarnpkg.com/web3-eth-abi/-/web3-eth-abi-1.2.4.tgz#5b73e5ef70b03999227066d5d1310b168845e2b8"
-  integrity sha512-8eLIY4xZKoU3DSVu1pORluAw9Ru0/v4CGdw5so31nn+7fR8zgHMgwbFe0aOqWQ5VU42PzMMXeIJwt4AEi2buFg==
-  dependencies:
-    ethers "4.0.0-beta.3"
-    underscore "1.9.1"
-    web3-utils "1.2.4"
-
 web3-eth-accounts@1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/web3-eth-accounts/-/web3-eth-accounts-1.2.1.tgz#2741a8ef337a7219d57959ac8bd118b9d68d63cf"
@@ -27827,20 +27814,6 @@ web3-utils@1.2.1:
     underscore "1.9.1"
     utf8 "3.0.0"
 
-web3-utils@1.2.4, web3-utils@^1.2.1:
-  version "1.2.4"
-  resolved "https://registry.yarnpkg.com/web3-utils/-/web3-utils-1.2.4.tgz#96832a39a66b05bf8862a5b0bdad2799d709d951"
-  integrity sha512-+S86Ip+jqfIPQWvw2N/xBQq5JNqCO0dyvukGdJm8fEWHZbckT4WxSpHbx+9KLEWY4H4x9pUwnoRkK87pYyHfgQ==
-  dependencies:
-    bn.js "4.11.8"
-    eth-lib "0.2.7"
-    ethereum-bloom-filters "^1.0.6"
-    ethjs-unit "0.1.6"
-    number-to-bn "1.7.0"
-    randombytes "^2.1.0"
-    underscore "1.9.1"
-    utf8 "3.0.0"
-
 web3@1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/web3/-/web3-1.2.1.tgz#5d8158bcca47838ab8c2b784a2dee4c3ceb4179b"
@@ -27854,6 +27827,17 @@ web3@1.2.1:
     web3-shh "1.2.1"
     web3-utils "1.2.1"
 
+web3@^0.18.4:
+  version "0.18.4"
+  resolved "https://registry.yarnpkg.com/web3/-/web3-0.18.4.tgz#81ec1784145491f2eaa8955b31c06049e07c5e7d"
+  integrity sha1-gewXhBRUkfLqqJVbMcBgSeB8Xn0=
+  dependencies:
+    bignumber.js "git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2"
+    crypto-js "^3.1.4"
+    utf8 "^2.1.1"
+    xhr2 "*"
+    xmlhttprequest "*"
+
 web3@^0.20.7:
   version "0.20.7"
   resolved "https://registry.yarnpkg.com/web3/-/web3-0.20.7.tgz#1605e6d81399ed6f85a471a4f3da0c8be57df2f7"
@@ -28243,7 +28227,7 @@ xhr2-cookies@1.1.0, xhr2-cookies@^1.1.0:
   dependencies:
     cookiejar "^2.1.1"
 
-xhr2@0.1.3:
+xhr2@*, xhr2@0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/xhr2/-/xhr2-0.1.3.tgz#cbfc4759a69b4a888e78cf4f20b051038757bd11"
   integrity sha1-y/xHWaabSoiOeM9PILBRA4dXvRE=