diff --git a/.circleci/config.yml b/.circleci/config.yml
index 1fda7e862c..7660cc5364 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -103,6 +103,7 @@ jobs:
       - run:
           name: test arb-provider-ethers
           command: |
+            yarn
             yarn test --coverage --ci --runInBand --reporters=default --reporters=jest-junit
             yarn lint --format junit -o ${TEST_RESULTS}/arb-provider-ethers-lint.xml
           environment:
diff --git a/packages/arb-provider-ethers/package.json b/packages/arb-provider-ethers/package.json
index 35e5e68672..a4cdda9af0 100644
--- a/packages/arb-provider-ethers/package.json
+++ b/packages/arb-provider-ethers/package.json
@@ -18,6 +18,7 @@
   "scripts": {
     "prepublishOnly": "yarn build && yarn format && yarn test",
     "preversion": "yarn lint",
+    "prepare": "install-peers",
     "build": "./scripts/builder",
     "watch": "tsc --watch",
     "test": "jest --config jest.config.js",
@@ -26,12 +27,15 @@
     "update-abi": "./scripts/update-abi && yarn format"
   },
   "dependencies": {
-    "ethers": "^4.0.47",
     "jayson": "^3.2.0",
     "promise-poller": "^1.9.1"
   },
+  "peerDependencies": {
+    "ethers": "~4.0.47"
+  },
   "devDependencies": {
     "@types/jest": "^25.1.1",
+    "install-peers-cli": "^2.2.0",
     "jest": "^25.1.0",
     "jest-junit": "^10.0.0",
     "ts-jest": "^25.2.0",
diff --git a/yarn.lock b/yarn.lock
index 5a1c130e88..179e5494d4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5105,21 +5105,6 @@ ethers@^4.0.0-beta.1, ethers@^4.0.32:
     uuid "2.0.1"
     xmlhttprequest "1.8.0"
 
-ethers@^4.0.47:
-  version "4.0.47"
-  resolved "https://registry.yarnpkg.com/ethers/-/ethers-4.0.47.tgz#91b9cd80473b1136dd547095ff9171bd1fc68c85"
-  integrity sha512-hssRYhngV4hiDNeZmVU/k5/E8xmLG8UpcNUzg6mb7lqhgpFPH/t7nuv20RjRrEf0gblzvi2XwR5Te+V3ZFc9pQ==
-  dependencies:
-    aes-js "3.0.0"
-    bn.js "^4.4.0"
-    elliptic "6.5.2"
-    hash.js "1.1.3"
-    js-sha3 "0.5.7"
-    scrypt-js "2.0.4"
-    setimmediate "1.0.4"
-    uuid "2.0.1"
-    xmlhttprequest "1.8.0"
-
 ethjs-abi@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/ethjs-abi/-/ethjs-abi-0.2.1.tgz#e0a7a93a7e81163a94477bad56ede524ab6de533"
@@ -5227,6 +5212,13 @@ execa@^4.0.0:
     signal-exit "^3.0.2"
     strip-final-newline "^2.0.0"
 
+executioner@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/executioner/-/executioner-2.0.1.tgz#add328e03bc45dd598f358fbb529fc0be0ec6fcd"
+  integrity sha1-rdMo4DvEXdWY81j7tSn8C+Dsb80=
+  dependencies:
+    mixly "^1.0.0"
+
 exit@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/exit/-/exit-0.1.2.tgz#0632638f8d877cc82107d30a0fff1a17cba1cd0c"
@@ -5814,6 +5806,11 @@ fsevents@^2.1.2, fsevents@~2.1.1:
   resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-2.1.2.tgz#4c0a1fb34bc68e543b4b82a9ec392bfbda840805"
   integrity sha512-R4wDiBwZ0KzpgOWetKDug1FZcYhqYnUYKtfZYt4mD5SBz76q0KR4Q9o7GIPamsVPGmW3EYPPJ0dOOjvx32ldZA==
 
+fulcon@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/fulcon/-/fulcon-1.0.2.tgz#8a4dfda4c73fcd9cc62a79d5045c392b45547320"
+  integrity sha1-ik39pMc/zZzGKnnVBFw5K0VUcyA=
+
 function-bind@^1.0.2, function-bind@^1.1.1, function-bind@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
@@ -6666,6 +6663,14 @@ inquirer@^7.0.0:
     strip-ansi "^6.0.0"
     through "^2.3.6"
 
+install-peers-cli@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/install-peers-cli/-/install-peers-cli-2.2.0.tgz#f76f1ec8ac9fa7f920c05743e011554edad85f8d"
+  integrity sha512-scSNvF49HDOLNm2xLFwST23g/OvfsceiA087bcGBgZP/ZNCrvpSaCn5IrWNZ2XYmFFykXF/6J1Zgm+D/JgRgtA==
+  dependencies:
+    commander "^2.20.0"
+    executioner "^2.0.1"
+
 internal-ip@^4.3.0:
   version "4.3.0"
   resolved "https://registry.yarnpkg.com/internal-ip/-/internal-ip-4.3.0.tgz#845452baad9d2ca3b69c635a137acb9a0dad0907"
@@ -8880,6 +8885,13 @@ mixin-deep@^1.2.0:
     for-in "^1.0.2"
     is-extendable "^1.0.1"
 
+mixly@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/mixly/-/mixly-1.0.0.tgz#9b5a2e1f63e6dfba0d30e6797ffae62ab1dc24ef"
+  integrity sha1-m1ouH2Pm37oNMOZ5f/rmKrHcJO8=
+  dependencies:
+    fulcon "^1.0.1"
+
 mkdirp-promise@^5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/mkdirp-promise/-/mkdirp-promise-5.0.1.tgz#e9b8f68e552c68a9c1713b84883f7a1dd039b8a1"