diff --git a/package-lock.json b/package-lock.json
index b3a6a63ac7..91c10fb651 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1722,6 +1722,21 @@
       "integrity": "sha512-1ZsOHGc0qJDofO+/98PfchHJqJjtfZL3liVGi4QZ28GtLmTVuZ4SUJFa5NgbsYawnrr//pdNOfx9JiaLFKpzrA==",
       "dev": true
     },
+    "@rollup/plugin-alias": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-alias/-/plugin-alias-3.0.1.tgz",
+      "integrity": "sha512-ReSy6iPl3GsWLMNeshXAfgItZFMoMOTYC7MZQQM5va4pqxiGgwl1xZUZfHW6zGyZPK+k8TBadxx+kdmepiUa+g==",
+      "requires": {
+        "slash": "^3.0.0"
+      },
+      "dependencies": {
+        "slash": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/slash/-/slash-3.0.0.tgz",
+          "integrity": "sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q=="
+        }
+      }
+    },
     "@rollup/plugin-commonjs": {
       "version": "11.0.2",
       "resolved": "https://registry.npmjs.org/@rollup/plugin-commonjs/-/plugin-commonjs-11.0.2.tgz",
diff --git a/package.json b/package.json
index e49e142252..7238d16905 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,8 @@
     "@babel/plugin-transform-react-jsx": "^7.9.4",
     "@babel/preset-env": "^7.6.3",
     "@babel/types": "^7.6.3",
-    "@rollup/plugin-commonjs": "~11.0.0",
+    "@rollup/plugin-alias": "^3.0.1",
+    "@rollup/plugin-commonjs": "^11.0.0",
     "@rollup/plugin-json": "^4.0.0",
     "@rollup/plugin-node-resolve": "^7.1.0",
     "@rollup/plugin-replace": "^2.1.0",
diff --git a/src/config.ts b/src/config.ts
index 3fb653404e..6eed93a33f 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -28,6 +28,7 @@ export interface SnowpackConfig {
   exclude: string[];
   knownEntrypoints: string[];
   webDependencies?: {[packageName: string]: string};
+  aliases?: {[key: string]: string};
   scripts: DevScripts;
   devOptions: {
     port: number;
@@ -97,10 +98,14 @@ const configSchema = {
     webDependencies: {
       type: ['object'],
       additionalProperties: {type: 'string'},
+    },                                           
+    aliases: {
+      type: 'object',
+      additionalProperties: {type: 'string'},
     },
     installOptions: {
       type: 'object',
-      properties: {
+      properties: {      
         babel: {type: 'boolean'},
         clean: {type: 'boolean'},
         dest: {type: 'string'},
diff --git a/src/index.ts b/src/index.ts
index 1b243a3a7e..0b696f2496 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -3,6 +3,7 @@ import rollupPluginCommonjs from '@rollup/plugin-commonjs';
 import rollupPluginJson from '@rollup/plugin-json';
 import rollupPluginNodeResolve from '@rollup/plugin-node-resolve';
 import rollupPluginReplace from '@rollup/plugin-replace';
+import rollupPluginAlias from '@rollup/plugin-alias';
 import chalk from 'chalk';
 import fs from 'fs';
 import isNodeBuiltin from 'is-builtin-module';
@@ -247,6 +248,7 @@ export async function install(
   config: SnowpackConfig,
 ) {
   const {
+    aliases = {},
     webDependencies,
     installOptions: {
       installTypes,
@@ -267,8 +269,12 @@ export async function install(
     logError('no "node_modules" directory exists. Did you run "npm install" first?');
     return;
   }
-
-  const allInstallSpecifiers = new Set(installTargets.map((dep) => dep.specifier).sort());
+  const allInstallSpecifiers = new Set(
+    installTargets
+      .map((dep) => dep.specifier)
+      .map((specifier) => aliases[specifier] || specifier)
+      .sort(),
+  );
   const installEntrypoints: {[targetName: string]: string} = {};
   const assetEntrypoints: {[targetName: string]: string} = {};
   const importMap: ImportMap = {imports: {}};
@@ -289,6 +295,11 @@ export async function install(
       if (targetType === 'JS') {
         installEntrypoints[targetName] = targetLoc;
         importMap.imports[installSpecifier] = `./${targetName}.js`;
+        Object.entries(aliases)
+          .filter(([key, value]) => value === installSpecifier)
+          .forEach(([key, value]) => {
+            importMap.imports[key] = `./${targetName}.js`;
+          });
         installTargetsMap[targetLoc] = installTargets.filter(
           (t) => installSpecifier === t.specifier,
         );
@@ -337,6 +348,12 @@ export async function install(
           installTypes,
           log: (url) => logUpdate(chalk.dim(url)),
         }),
+      rollupPluginAlias({
+        entries: Object.entries(aliases).map(([alias, mod]) => ({
+          find: alias,
+          replacement: mod,
+        })),
+      }),
       rollupPluginNodeResolve({
         mainFields: ['browser:module', 'module', 'browser', 'main'].filter(isTruthy),
         extensions: ['.mjs', '.cjs', '.js', '.json'], // Default: [ '.mjs', '.js', '.json', '.node' ]