diff --git a/packages/dai-plugin-mcd/contracts/abiMap.js b/packages/dai-plugin-mcd/contracts/abiMap.js
new file mode 100644
index 000000000..005ff3b43
--- /dev/null
+++ b/packages/dai-plugin-mcd/contracts/abiMap.js
@@ -0,0 +1,44 @@
+// not run through babel, so we must use an ES5-safe export
+module.exports = {
+  REP: require('./abis/REP.json'),
+  ZRX: require('./abis/ZRX.json'),
+  OMG: require('./abis/OMG.json'),
+  BAT: require('./abis/BAT.json'),
+  DGD: require('./abis/DGD.json'),
+  GNT: require('./abis/GNT.json'),
+  SAI: require('./abis/DSToken.json'),
+  CDP_MANAGER: require('./abis/DssCdpManager.json'),
+  ETH: require('./abis/WETH9_.json'),
+  GET_CDPS: require('./abis/GetCdps.json'),
+  MCD_ADM: require('./abis/DSRoles.json'),
+  MCD_CAT: require('./abis/Cat.json'),
+  MCD_DAI: require('./abis/DSToken.json'),
+  MCD_DAI_GUARD: require('./abis/DSGuard.json'),
+  MCD_DEPLOY: require('./abis/DssDeploy.json'),
+  MCD_FLAP: require('./abis/Flapper.json'),
+  'MCD_FLIP_*': require('./abis/Flipper.json'),
+  MCD_FLOP: require('./abis/Flopper.json'),
+  MCD_GOV: require('./abis/DSToken.json'),
+  'MCD_JOIN_*': require('./abis/GemJoin.json'),
+  MCD_JOIN_OMG_A: require('./abis/GemJoin2.json'),
+  MCD_JOIN_DGD_A: require('./abis/GemJoin2.json'),
+  MCD_JOIN_GNT_A: require('./abis/GemJoin4.json'),
+  MCD_JOIN_DAI: require('./abis/DaiJoin.json'),
+  MCD_JUG: require('./abis/Jug.json'),
+  MCD_END: require('./abis/End.json'),
+  MCD_ESM: require('./abis/ESM.json'),
+  MCD_PAUSE: require('./abis/DSPause.json'),
+  MCD_PAUSE_PROXY: require('./abis/Plan.json'),
+  MCD_POT: require('./abis/Pot.json'),
+  MCD_SPOT: require('./abis/Spotter.json'),
+  MCD_VAT: require('./abis/Vat.json'),
+  MCD_VOW: require('./abis/Vow.json'),
+  MULTICALL: require('./abis/MultiCall.json'),
+  'PIP_*': require('./abis/DSValue.json'),
+  PROXY_ACTIONS: require('./abis/DssProxyActions.json'),
+  PROXY_ACTIONS_DSR: require('./abis/DssProxyActionsDsr.json'),
+  MIGRATION: require('./abis/ScdMcdMigration.json'),
+  MIGRATION_PROXY_ACTIONS: require('./abis/MigrationProxyActions.json'),
+  USDC: require('./abis/USDC.json'),
+  WBTC: require('./abis/WBTC.json')
+};
diff --git a/packages/dai-plugin-mcd/contracts/abiMap.json b/packages/dai-plugin-mcd/contracts/abiMap.json
deleted file mode 100644
index 746c922ee..000000000
--- a/packages/dai-plugin-mcd/contracts/abiMap.json
+++ /dev/null
@@ -1,45 +0,0 @@
-{
-  "REP": "REP",
-  "ZRX": "ZRX",
-  "OMG": "OMG",
-  "BAT": "BAT",
-  "DGD": "DGD",
-  "GNT": "GNT",
-  "SAI": "DSToken",
-  "CDP_MANAGER": "DssCdpManager",
-  "ETH": "WETH9_",
-  "GET_CDPS": "GetCdps",
-  "MCD_ADM": "DSRoles",
-  "MCD_CAT": "Cat",
-  "MCD_DAI": "DSToken",
-  "MCD_DAI_GUARD": "DSGuard",
-  "MCD_DEPLOY": "DssDeploy",
-  "MCD_FLAP": "Flapper",
-  "MCD_FLIP_*": "Flipper",
-  "MCD_FLOP": "Flopper",
-  "MCD_GOV": "DSToken",
-  "MCD_JOIN_*": "GemJoin",
-  "MCD_JOIN_OMG_A": "GemJoin2",
-  "MCD_JOIN_DGD_A": "GemJoin2",
-  "MCD_JOIN_GNT_A": "GemJoin4",
-  "MCD_JOIN_DAI": "DaiJoin",
-  "MCD_JUG": "Jug",
-  "MCD_END": "End",
-  "MCD_ESM": "ESM",
-  "MCD_MOVE_*": "GemMove",
-  "MCD_MOVE_DAI": "DaiMove",
-  "MCD_PAUSE": "DSPause",
-  "MCD_PAUSE_PROXY": "Plan",
-  "MCD_POT": "Pot",
-  "MCD_SPOT": "Spotter",
-  "MCD_VAT": "Vat",
-  "MCD_VOW": "Vow",
-  "MULTICALL": "MultiCall",
-  "PIP_*": "DSValue",
-  "PROXY_ACTIONS": "DssProxyActions",
-  "PROXY_ACTIONS_DSR": "DssProxyActionsDsr",
-  "MIGRATION": "ScdMcdMigration",
-  "MIGRATION_PROXY_ACTIONS": "MigrationProxyActions",
-  "USDC": "USDC",
-  "WBTC": "WBTC"
-}
diff --git a/packages/dai-plugin-mcd/src/index.js b/packages/dai-plugin-mcd/src/index.js
index 8f6851dde..8bd19e32e 100644
--- a/packages/dai-plugin-mcd/src/index.js
+++ b/packages/dai-plugin-mcd/src/index.js
@@ -6,7 +6,7 @@ import { createCurrency, createCurrencyRatio } from '@makerdao/currency';
 import testnetAddresses from '../contracts/addresses/testnet.json';
 import kovanAddresses from '../contracts/addresses/kovan.json';
 import mainnetAddresses from '../contracts/addresses/mainnet.json';
-import abiMap from '../contracts/abiMap.json';
+import abiMap from '../contracts/abiMap';
 import CdpManager from './CdpManager';
 import SavingsService from './SavingsService';
 import CdpTypeService from './CdpTypeService';
@@ -26,18 +26,18 @@ const { CDP_MANAGER, CDP_TYPE, SYSTEM_DATA, AUCTION, SAVINGS } = ServiceRoles;
 let addContracts = reduce(
   testnetAddresses,
   (result, testnetAddress, name) => {
-    let abiName = abiMap[name];
-    if (!abiName) {
+    let abi = abiMap[name];
+    if (!abi) {
       const prefix = Object.keys(abiMap).find(
         k =>
           k.substring(k.length - 1) == '*' &&
           k.substring(0, k.length - 1) == name.substring(0, k.length - 1)
       );
-      if (prefix) abiName = abiMap[prefix];
+      if (prefix) abi = abiMap[prefix];
     }
-    if (abiName) {
+    if (abi) {
       result[name] = {
-        abi: require(`../contracts/abis/${abiName}.json`),
+        abi,
         address: {
           testnet: testnetAddress,
           kovan: kovanAddresses[name],
diff --git a/packages/dai-plugin-migrations/contracts/abiMap.js b/packages/dai-plugin-migrations/contracts/abiMap.js
new file mode 100644
index 000000000..77deb90f8
--- /dev/null
+++ b/packages/dai-plugin-migrations/contracts/abiMap.js
@@ -0,0 +1,26 @@
+// not run through babel, so we must use an ES5-safe export
+module.exports = {
+  TUB: require('./abis/SaiTub.json'),
+  MCD_END_1: require('./abis/End.json'),
+  MCD_VAT_1: require('./abis/Vat.json'),
+  GET_CDPS_1: require('./abis/GetCdps.json'),
+  CDP_MANAGER_1: require('./abis/DssCdpManager.json'),
+  MCD_DAI_1: require('./abis/Dai.json'),
+  MCD_POT_1: require('./abis/Pot.json'),
+  MCD_END: require('./abis/End.json'),
+  MCD_VAT: require('./abis/Vat.json'),
+  GET_CDPS: require('./abis/GetCdps.json'),
+  CDP_MANAGER: require('./abis/DssCdpManager.json'),
+  MCD_DAI: require('./abis/Dai.json'),
+  MCD_POT: require('./abis/Pot.json'),
+  REDEEMER: require('./abis/Redeemer.json'),
+  MIGRATION: require('./abis/ScdMcdMigration.json'),
+  MIGRATION_PROXY_ACTIONS: require('./abis/MigrationProxyActions.json'),
+  OLD_CHIEF: require('./abis/DSChief.json'),
+  OLD_VOTE_PROXY_FACTORY: require('./abis/VoteProxyFactory.json'),
+  OLD_MKR: require('./abis/DSToken.json'),
+  'MCD_JOIN_*': require('./abis/GemJoin.json'),
+  PROXY_ACTIONS_END: require('./abis/DssProxyActionsEnd.json'),
+  SAI_CAGEFREE: require('./abis/CageFree.json'),
+  MCD_ESM: require('./abis/ESM.json')
+};
diff --git a/packages/dai-plugin-migrations/contracts/abiMap.json b/packages/dai-plugin-migrations/contracts/abiMap.json
deleted file mode 100644
index 9719c3979..000000000
--- a/packages/dai-plugin-migrations/contracts/abiMap.json
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-  "TUB": "SaiTub",
-  "MCD_END_1": "End",
-  "MCD_VAT_1": "Vat",
-  "GET_CDPS_1": "GetCdps",
-  "CDP_MANAGER_1": "DssCdpManager",
-  "MCD_DAI_1": "Dai",
-  "MCD_POT_1": "Pot",
-  "MCD_END": "End",
-  "MCD_VAT": "Vat",
-  "GET_CDPS": "GetCdps",
-  "CDP_MANAGER": "DssCdpManager",
-  "MCD_DAI": "Dai",
-  "MCD_POT": "Pot",
-  "REDEEMER": "Redeemer",
-  "MIGRATION": "ScdMcdMigration",
-  "MIGRATION_PROXY_ACTIONS": "MigrationProxyActions",
-  "OLD_CHIEF": "DSChief",
-  "OLD_VOTE_PROXY_FACTORY": "VoteProxyFactory",
-  "OLD_MKR": "DSToken",
-  "MCD_JOIN_*": "GemJoin",
-  "PROXY_ACTIONS_END": "DssProxyActionsEnd",
-  "SAI_CAGEFREE": "CageFree",
-  "MCD_ESM": "ESM"
-}
\ No newline at end of file
diff --git a/packages/dai-plugin-migrations/src/index.js b/packages/dai-plugin-migrations/src/index.js
index 83f144963..72bd46094 100644
--- a/packages/dai-plugin-migrations/src/index.js
+++ b/packages/dai-plugin-migrations/src/index.js
@@ -2,7 +2,7 @@ import { createCurrency } from '@makerdao/currency';
 import testnetAddresses from '../contracts/addresses/testnet.json';
 import kovanAddresses from '../contracts/addresses/kovan.json';
 import mainnetAddresses from '../contracts/addresses/mainnet.json';
-import abiMap from '../contracts/abiMap.json';
+import abiMap from '../contracts/abiMap';
 import MigrationService from './MigrationService';
 import { ServiceRoles as ServiceRoles_ } from './constants';
 export const ServiceRoles = ServiceRoles_;
@@ -11,11 +11,11 @@ const { MIGRATION } = ServiceRoles;
 // this implementation assumes that all contracts in kovan.json, mainnet.json are also in testnet.json
 const allContracts = Object.entries(testnetAddresses).reduce(
   (contracts, [name, testnetAddress]) => {
-    const abiName = abiMap[name];
+    const abi = abiMap[name];
 
-    if (abiName) {
+    if (abi) {
       contracts[name] = {
-        abi: require(`../contracts/abis/${abiName}.json`),
+        abi,
         address: {
           testnet: testnetAddress,
           kovan: kovanAddresses[name],
diff --git a/packages/dai-plugin-scd/contracts/abiMap.js b/packages/dai-plugin-scd/contracts/abiMap.js
new file mode 100644
index 000000000..6352b9e47
--- /dev/null
+++ b/packages/dai-plugin-scd/contracts/abiMap.js
@@ -0,0 +1,21 @@
+// might not be run through babel in the future, so we must use an ES5-safe export
+module.exports = {
+  SAI_PIP: require('./abis/DSValue'),
+  SAI_PEP: require('./abis/DSValue'),
+  SAI_PIT: require('./abis/GemPit'),
+  SAI_SIN: require('./abis/ERC20'),
+  SAI_MOM: require('./abis/SaiMom'),
+  SAI_VOX: require('./abis/SaiVox'),
+  SAI_TUB: require('./abis/SaiTub'),
+  SAI_TAP: require('./abis/SaiTap'),
+  SAI_TOP: require('./abis/SaiTop'),
+  SAI_SKR: require('./abis/ERC20'),
+  SAI_GEM: require('./abis/WETH9'),
+  SAI_GOV: require('./abis/ERC20'),
+  SAI: require('./abis/ERC20'),
+  SAI_PROXY: require('./abis/SaiProxyCreateAndExecute'),
+  PROXY_REGISTRY: require('./abis/ProxyRegistry'),
+  DS_PROXY_FACTORY: require('./abis/DSProxyFactory'),
+  DS_PROXY: require('./abis/DSProxy'),
+  MULTICALL: require('./abis/Multicall')
+};
diff --git a/packages/dai-plugin-scd/contracts/abiMap.json b/packages/dai-plugin-scd/contracts/abiMap.json
deleted file mode 100644
index a2c7185bc..000000000
--- a/packages/dai-plugin-scd/contracts/abiMap.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "SAI_PIP": "DSValue",
-    "SAI_PEP": "DSValue",
-    "SAI_PIT": "GemPit",
-    "SAI_SIN": "ERC20",
-    "SAI_MOM": "SaiMom",
-    "SAI_VOX": "SaiVox",
-    "SAI_TUB": "SaiTub",
-    "SAI_TAP": "SaiTap",
-    "SAI_TOP": "SaiTop",
-    "SAI_SKR": "ERC20",
-    "SAI_GEM": "WETH9",
-    "SAI_GOV": "ERC20",
-    "SAI": "ERC20",
-    "SAI_PROXY": "SaiProxyCreateAndExecute",
-    "PROXY_REGISTRY": "ProxyRegistry",
-    "DS_PROXY_FACTORY": "DSProxyFactory",
-    "DS_PROXY": "DSProxy",
-    "MULTICALL": "Multicall"
-}
diff --git a/packages/dai-plugin-scd/src/index.js b/packages/dai-plugin-scd/src/index.js
index 1ac5f11ad..7b5c44515 100644
--- a/packages/dai-plugin-scd/src/index.js
+++ b/packages/dai-plugin-scd/src/index.js
@@ -4,7 +4,7 @@ import { createCurrency, createCurrencyRatio } from '@makerdao/currency';
 import testnetAddresses from '../contracts/addresses/testnet.json';
 import kovanAddresses from '../contracts/addresses/kovan.json';
 import mainnetAddresses from '../contracts/addresses/mainnet.json';
-import abiMap from '../contracts/abiMap.json';
+import abiMap from '../contracts/abiMap';
 import EthereumCdpService from './EthereumCdpService';
 import PriceService from './PriceService';
 import TokenConversionService from './TokenConversionService';
@@ -21,18 +21,18 @@ const { CDP, PRICE, CONVERSION } = ServiceRoles;
 let addContracts = reduce(
   testnetAddresses,
   (result, testnetAddress, name) => {
-    let abiName = abiMap[name];
-    if (!abiName) {
+    let abi = abiMap[name];
+    if (!abi) {
       const prefix = Object.keys(abiMap).find(
         k =>
           k.substring(k.length - 1) == '*' &&
           k.substring(0, k.length - 1) == name.substring(0, k.length - 1)
       );
-      if (prefix) abiName = abiMap[prefix];
+      if (prefix) abi = abiMap[prefix];
     }
-    if (abiName) {
+    if (abi) {
       result[name] = {
-        abi: require(`../contracts/abis/${abiName}.json`),
+        abi,
         address: {
           testnet: testnetAddress,
           kovan: kovanAddresses[name],