diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 3b8ba9d..88f0474 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -74,4 +74,4 @@ jobs:
 
       - name: Publish tagged version
         if: steps.release.outputs.tag != ''
-        run: npm publish --tag ${{ steps.release.outputs.tag }}
\ No newline at end of file
+        run: npm publish --tag ${{ steps.release.outputs.tag }}
diff --git a/README.md b/README.md
index 46fcf53..c98331b 100644
--- a/README.md
+++ b/README.md
@@ -27,10 +27,10 @@ console.log(usdc.addresses[1]); // Ethereum mainnet address
 
 ## What's Exported
 
-| Module | Description |
-|--------|-------------|
-| `networks` | Chain ID constants for testnets and mainnets, chain metadata |
-| `tokens` | `TOKEN_SYMBOLS_MAP` — token name, symbol, decimals, per-chain addresses, coingeckoId |
+| Module     | Description                                                                          |
+| ---------- | ------------------------------------------------------------------------------------ |
+| `networks` | Chain ID constants for testnets and mainnets, chain metadata                         |
+| `tokens`   | `TOKEN_SYMBOLS_MAP` — token name, symbol, decimals, per-chain addresses, coingeckoId |
 
 ## Development
 
diff --git a/package.json b/package.json
index 793b78c..aec44a7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@across-protocol/constants",
-  "version": "3.1.107",
+  "version": "3.1.108",
   "description": "Export commonly re-used values for Across repositories",
   "repository": {
     "type": "git",
@@ -23,10 +23,9 @@
     "prettier": "prettier .",
     "eslint": "eslint .",
     "prepare": "yarn build",
-    "build": "yarn run clean && yarn run build:cjs && yarn run build:esm && yarn run build:types",
-    "build:cjs": "tsc --project tsconfig.json --module commonjs --outDir ./dist/cjs --removeComments --verbatimModuleSyntax false && echo > ./dist/cjs/package.json '{\"type\":\"commonjs\"}'",
-    "build:esm": "tsc --project tsconfig.json --module es2015 --outDir ./dist/esm && echo > ./dist/esm/package.json '{\"type\":\"module\",\"sideEffects\":false}'",
-    "build:types": "tsc --project tsconfig.json --module esnext --declarationDir ./dist/types --emitDeclarationOnly --declaration --declarationMap",
+    "build": "yarn run clean && yarn run build:cjs && yarn run build:esm",
+    "build:cjs": "tsc --project tsconfig.cjs.json && echo > ./dist/cjs/package.json '{\"type\":\"commonjs\"}'",
+    "build:esm": "tsc --project tsconfig.json",
     "clean": "rm -rf ./dist"
   },
   "devDependencies": {
@@ -45,13 +44,13 @@
   },
   "main": "./dist/cjs/index.js",
   "module": "./dist/esm/index.js",
-  "types": "./dist/types/index.d.ts",
-  "typings": "./dist/types/index.d.ts",
+  "types": "./dist/esm/index.d.ts",
+  "typings": "./dist/esm/index.d.ts",
   "exports": {
     ".": {
-      "require": "./dist/cjs/index.js",
+      "types": "./dist/esm/index.d.ts",
       "import": "./dist/esm/index.js",
-      "types": "./dist/types/index.d.ts"
+      "require": "./dist/cjs/index.js"
     },
     "./dist/cjs/*": {
       "require": "./dist/cjs/*.js",
diff --git a/src/index.ts b/src/index.ts
index 69ee52a..3055f5c 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,2 +1,2 @@
-export * from "./networks";
-export * from "./tokens";
+export * from "./networks.js";
+export * from "./tokens.js";
diff --git a/src/tokens.ts b/src/tokens.ts
index 0901f41..fce2f8a 100644
--- a/src/tokens.ts
+++ b/src/tokens.ts
@@ -1,4 +1,4 @@
-import { CHAIN_IDs } from "./networks";
+import { CHAIN_IDs } from "./networks.js";
 
 // Information for the supported tokens on each chain.
 // NOTE: All addresses should be checksummed
diff --git a/tsconfig.cjs.json b/tsconfig.cjs.json
new file mode 100644
index 0000000..4956c2f
--- /dev/null
+++ b/tsconfig.cjs.json
@@ -0,0 +1,11 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "verbatimModuleSyntax": false,
+    "outDir": "./dist/cjs",
+    "removeComments": true,
+    "ignoreDeprecations": "6.0"
+  }
+}
diff --git a/tsconfig.json b/tsconfig.json
index ceb191c..5507b61 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,31 +1,21 @@
 {
   "compilerOptions": {
-    "module": "CommonJS",
-    "target": "ES2024",
-    // output .d.ts declaration files for consumers
+    "target": "ES2022",
+    "module": "nodenext",
+    "moduleResolution": "nodenext",
+    "verbatimModuleSyntax": true,
     "declaration": true,
-    // output .js.map sourcemap files for consumers
+    "declarationMap": true,
     "sourceMap": true,
-    // match output dir to input dir. e.g. dist/index instead of dist/src/index
     "rootDir": "./src",
-    // stricter type-checking for stronger correctness. Recommended by TS
     "strict": true,
-    // linter checks for common issues
     "noImplicitReturns": true,
     "noFallthroughCasesInSwitch": true,
-    // noUnused* overlap with @typescript-eslint/no-unused-vars, can disable if duplicative
     "noUnusedLocals": true,
     "noUnusedParameters": true,
-    // use Node's module resolution algorithm, instead of the legacy TS one
-    "moduleResolution": "node",
-    "ignoreDeprecations": "6.0",
-    // interop between ESM and CJS modules. Recommended by TS
     "esModuleInterop": true,
-    // significant perf increase by skipping checking .d.ts files, particularly those in node_modules. Recommended by TS
     "skipLibCheck": true,
-    // error out if import and file system have a casing mismatch. Recommended by TS
     "forceConsistentCasingInFileNames": true,
-    // output to dist folder
-    "outDir": "./dist"
+    "outDir": "./dist/esm"
   }
 }