diff --git a/src/api/install.ts b/src/api/install.ts
index 9021ca3452..8c0426ffe9 100644
--- a/src/api/install.ts
+++ b/src/api/install.ts
@@ -67,7 +67,7 @@ export async function install (maybeOpts?: PnpmOptions) {
 
   specs.forEach(spec => {
     if (ctx.shrinkwrap.specifiers && ctx.shrinkwrap.specifiers[spec.name] !== spec.rawSpec) {
-      delete ctx.shrinkwrap.packages['/'].dependencies[spec.name]
+      delete ctx.shrinkwrap.dependencies[spec.name]
     }
   })
 
@@ -146,7 +146,7 @@ export async function installPkgs (fuzzyDeps: string[] | Dependencies, maybeOpts
   const installCtx = await createInstallCmd(opts, ctx.shrinkwrap, ctx.skipped)
 
   packagesToInstall.forEach(spec => {
-    delete ctx.shrinkwrap.packages['/'].dependencies[spec.name]
+    delete ctx.shrinkwrap.dependencies[spec.name]
   })
 
   if (opts.lock === false) {
@@ -218,7 +218,7 @@ async function installInContext (
       alwaysAuth: opts.alwaysAuth,
     }),
     metaCache: opts.metaCache,
-    resolvedDependencies: ctx.shrinkwrap.packages['/'].dependencies,
+    resolvedDependencies: ctx.shrinkwrap.dependencies,
     offline: opts.offline,
     rawNpmConfig: opts.rawNpmConfig,
     nodeModules: nodeModulesPath,
@@ -259,7 +259,7 @@ async function installInContext (
   }
 
   if (newPkg) {
-    ctx.shrinkwrap.packages['/'].dependencies = ctx.shrinkwrap.packages['/'].dependencies || {}
+    ctx.shrinkwrap.dependencies = ctx.shrinkwrap.dependencies || {}
     ctx.shrinkwrap.specifiers = ctx.shrinkwrap.specifiers || {}
 
     const deps = newPkg.dependencies || {}
@@ -269,14 +269,14 @@ async function installInContext (
     const getSpecFromPkg = (depName: string) => deps[depName] || devDeps[depName] || optionalDeps[depName]
 
     pkgs.forEach(dep => {
-      ctx.shrinkwrap.packages['/'].dependencies[dep.name] = pkgIdToRef(dep.id, dep.name, dep.resolution, ctx.shrinkwrap.registry)
+      ctx.shrinkwrap.dependencies[dep.name] = pkgIdToRef(dep.id, dep.name, dep.resolution, ctx.shrinkwrap.registry)
       ctx.shrinkwrap.specifiers[dep.name] = getSpecFromPkg(dep.name)
     })
-    Object.keys(ctx.shrinkwrap.packages['/'].dependencies)
+    Object.keys(ctx.shrinkwrap.dependencies)
       .filter(pkgName => !getSpecFromPkg(pkgName))
       .forEach(removedDep => {
         delete ctx.shrinkwrap.specifiers[removedDep]
-        delete ctx.shrinkwrap.packages['/'].dependencies[removedDep]
+        delete ctx.shrinkwrap.dependencies[removedDep]
       })
   }
 
diff --git a/src/api/prune.ts b/src/api/prune.ts
index eb7186297e..06b796a7cf 100644
--- a/src/api/prune.ts
+++ b/src/api/prune.ts
@@ -35,7 +35,7 @@ export async function prune(maybeOpts?: PnpmOptions): Promise<void> {
 
     const newShr = ctx.shrinkwrap
     extraneousPkgs.forEach(depName => {
-      delete newShr.packages['/'].dependencies[depName]
+      delete newShr.dependencies[depName]
       delete newShr.specifiers[depName]
     })
 
diff --git a/src/api/removeOrphanPkgs.ts b/src/api/removeOrphanPkgs.ts
index 4fe31a6134..6ac5a2c994 100644
--- a/src/api/removeOrphanPkgs.ts
+++ b/src/api/removeOrphanPkgs.ts
@@ -15,8 +15,8 @@ export default async function removeOrphanPkgs (
   root: string,
   storePath: string
 ): Promise<string[]> {
-  const oldPkgNames = Object.keys(oldShr.packages['/'].dependencies)
-  const newPkgNames = Object.keys(newShr.packages['/'].dependencies)
+  const oldPkgNames = Object.keys(oldShr.dependencies)
+  const newPkgNames = Object.keys(newShr.dependencies)
 
   const removedTopDeps = R.difference(oldPkgNames, newPkgNames)
 
diff --git a/src/api/uninstall.ts b/src/api/uninstall.ts
index a10d887040..89ad783ac3 100644
--- a/src/api/uninstall.ts
+++ b/src/api/uninstall.ts
@@ -47,9 +47,9 @@ export async function uninstallInContext (pkgsToUninstall: string[], pkg: Packag
   if (saveType) {
     const pkgJsonPath = path.join(ctx.root, 'package.json')
     const pkg = await removeDeps(pkgJsonPath, pkgsToUninstall, saveType)
-    for (let depName in ctx.shrinkwrap.packages['/'].dependencies) {
+    for (let depName in ctx.shrinkwrap.dependencies) {
       if (!isDependentOn(pkg, depName)) {
-        delete ctx.shrinkwrap.packages['/'].dependencies[depName]
+        delete ctx.shrinkwrap.dependencies[depName]
         delete ctx.shrinkwrap.specifiers[depName]
       }
     }
diff --git a/src/fs/shrinkwrap.ts b/src/fs/shrinkwrap.ts
index 3a834af988..f0d598fba5 100644
--- a/src/fs/shrinkwrap.ts
+++ b/src/fs/shrinkwrap.ts
@@ -23,11 +23,8 @@ function getDefaultShrinkwrap (registry: string) {
     version: SHRINKWRAP_VERSION,
     createdWith: CREATED_WITH,
     specifiers: {},
-    packages: {
-      '/': {
-        dependencies: {},
-      },
-    },
+    dependencies: {},
+    packages: {},
     registry,
   }
 }
@@ -36,17 +33,13 @@ export type Shrinkwrap = {
   version: number,
   createdWith: string,
   specifiers: ResolvedDependencies,
+  dependencies: ResolvedDependencies,
   packages: ResolvedPackages,
   registry: string,
 }
 
 export type ResolvedPackages = {
-  '/': {
-    dependencies: ResolvedDependencies,
-  },
-  [pkgId: string]: DependencyShrinkwrap | {
-    dependencies: ResolvedDependencies,
-  },
+  [pkgId: string]: DependencyShrinkwrap,
 }
 
 export type DependencyShrinkwrap = string | {
@@ -124,7 +117,7 @@ export function save (pkgPath: string, shrinkwrap: Shrinkwrap) {
   const privateShrinkwrapPath = path.join(pkgPath, PRIVATE_SHRINKWRAP_FILENAME)
 
   // empty shrinkwrap is not saved
-  if (Object.keys(shrinkwrap.packages[PROJECT_ID].dependencies).length === 0) {
+  if (Object.keys(shrinkwrap.dependencies).length === 0) {
     return Promise.all([
       rimraf(shrinkwrapPath),
       rimraf(privateShrinkwrapPath),
@@ -143,25 +136,22 @@ export function save (pkgPath: string, shrinkwrap: Shrinkwrap) {
   ])
 }
 
-export const PROJECT_ID = '/'
-
 export function prune (shr: Shrinkwrap): Shrinkwrap {
   return {
     version: SHRINKWRAP_VERSION,
     createdWith: shr.createdWith || CREATED_WITH,
     specifiers: shr.specifiers,
     registry: shr.registry,
+    dependencies: shr.dependencies,
     packages: copyDependencyTree(shr, shr.registry),
   }
 }
 
 function copyDependencyTree (shr: Shrinkwrap, registry: string): ResolvedPackages {
-  const resolvedPackages: ResolvedPackages = {
-    '/': shr.packages[PROJECT_ID]
-  }
+  const resolvedPackages: ResolvedPackages = {}
 
-  let pkgIds: string[] = R.keys(shr.packages[PROJECT_ID].dependencies)
-    .map((pkgName: string) => getPkgShortId(shr.packages[PROJECT_ID].dependencies[pkgName], pkgName))
+  let pkgIds: string[] = R.keys(shr.dependencies)
+    .map((pkgName: string) => getPkgShortId(shr.dependencies[pkgName], pkgName))
 
   while (pkgIds.length) {
     let nextPkgIds: string[] = []
diff --git a/test/install/local.ts b/test/install/local.ts
index d7eaf63431..b3c9f47293 100644
--- a/test/install/local.ts
+++ b/test/install/local.ts
@@ -42,12 +42,10 @@ test('local file', async function (t: tape.Test) {
     specifiers: {
       'local-pkg': `file:..${path.sep}local-pkg`,
     },
+    dependencies: {
+      'local-pkg': 'file:../local-pkg',
+    },
     packages: {
-      '/': {
-        dependencies: {
-          'local-pkg': 'file:../local-pkg',
-        },
-      },
       'file:../local-pkg': {
         resolution: {
           root: '../local-pkg',
diff --git a/test/shrinkwrap.ts b/test/shrinkwrap.ts
index 514e465e68..539c29d15f 100644
--- a/test/shrinkwrap.ts
+++ b/test/shrinkwrap.ts
@@ -23,11 +23,10 @@ test('shrinkwrap file has correct format', async t => {
   t.ok(shr.registry, 'has registry field')
 
   t.ok(shr.specifiers, 'has specifiers field')
-  t.ok(shr.packages['/'], 'has root field')
-  t.ok(shr.packages['/'].dependencies, 'has root dependencies field')
-  t.equal(shr.packages['/'].dependencies['pkg-with-1-dep'], '100.0.0', 'has dependency resolved')
-  t.ok(shr.packages['/'].dependencies['@rstacruz/tap-spec'], 'has scoped dependency resolved')
-  t.ok(shr.packages['/'].dependencies['is-negative'].indexOf('/') !== -1, 'has not shortened tarball from the non-standard registry')
+  t.ok(shr.dependencies, 'has dependencies field')
+  t.equal(shr.dependencies['pkg-with-1-dep'], '100.0.0', 'has dependency resolved')
+  t.ok(shr.dependencies['@rstacruz/tap-spec'], 'has scoped dependency resolved')
+  t.ok(shr.dependencies['is-negative'].indexOf('/') !== -1, 'has not shortened tarball from the non-standard registry')
 
   t.ok(shr.packages, 'has packages field')
   t.ok(shr.packages[id], `has resolution for ${id}`)
@@ -49,9 +48,9 @@ test('shrinkwrap file has dev deps even when installing for prod only', async (t
   const shr = await project.loadShrinkwrap()
   const id = '/is-negative/2.1.0'
 
-  t.ok(shr.packages, 'has packages field')
+  t.ok(shr.dependencies, 'has dependencies field')
 
-  t.equal(shr.packages['/'].dependencies['is-negative'], '2.1.0', 'has dependency resolved')
+  t.equal(shr.dependencies['is-negative'], '2.1.0', 'has dependency resolved')
 
   t.ok(shr.packages[id], `has resolution for ${id}`)
 })
@@ -64,12 +63,10 @@ test('shrinkwrap with scoped package', async t => {
   })
 
   await writeYamlFile('shrinkwrap.yaml', {
+    dependencies: {
+      '@types/semver': '5.3.31',
+    },
     packages: {
-      '/': {
-        dependencies: {
-          '@types/semver': '5.3.31',
-        },
-      },
       '/@types/semver/5.3.31': 'b999d7d935f43f5207b01b00d3de20852f4ca75f',
     },
     registry: 'http://localhost:4873',
@@ -89,12 +86,10 @@ test('fail when shasum from shrinkwrap does not match with the actual one', asyn
   await writeYamlFile('shrinkwrap.yaml', {
     version: 2,
     registry: 'http://localhost:4873',
+    dependencies: {
+      'is-negative': '2.1.0',
+    },
     packages: {
-      '/': {
-        dependencies: {
-          'is-negative': '2.1.0',
-        },
-      },
       '/is-negative/2.1.0': {
         resolution: {
           shasum: '00000000000000000000000000000000000000000',
@@ -128,7 +123,7 @@ test("shrinkwrap doesn't lock subdependencies that don't satisfy the new specs",
 
   const shr = await project.loadShrinkwrap()
 
-  t.equal(Object.keys(shr.packages['/'].dependencies).length, 1, 'resolutions not duplicated')
+  t.equal(Object.keys(shr.dependencies).length, 1, 'resolutions not duplicated')
 })
 
 test('shrinkwrap not created when no deps in package.json', async t => {
@@ -145,12 +140,10 @@ test('shrinkwrap removed when no deps in package.json', async t => {
   await writeYamlFile('shrinkwrap.yaml', {
     version: 2,
     registry: 'http://localhost:4873',
+    dependencies: {
+      'is-negative': '2.1.0',
+    },
     packages: {
-      '/': {
-        dependencies: {
-          'is-negative': '2.1.0',
-        },
-      },
       '/is-negative/2.1.0': {
         resolution: {
           tarball: 'http://localhost:4873/is-negative/-/is-negative-2.1.0.tgz',
@@ -212,7 +205,7 @@ test("recreates shrinkwrap file if it doesn't match the dependencies in package.
   await installPkgs(['is-negative@2.0.0'], testDefaults({saveExact: true}))
 
   const shr1 = await project.loadShrinkwrap()
-  t.equal(shr1.packages['/'].dependencies['is-negative'], '2.0.0')
+  t.equal(shr1.dependencies['is-negative'], '2.0.0')
   t.equal(shr1.specifiers['is-negative'], '2.0.0')
 
   const pkg = await readPkg()
@@ -225,7 +218,7 @@ test("recreates shrinkwrap file if it doesn't match the dependencies in package.
 
   const shr = await project.loadShrinkwrap()
 
-  t.equal(shr.packages['/'].dependencies['is-negative'], '2.1.0')
+  t.equal(shr.dependencies['is-negative'], '2.1.0')
   t.equal(shr.specifiers['is-negative'], '^2.1.0')
 })
 
@@ -236,7 +229,7 @@ test('repeat install with shrinkwrap should not mutate shrinkwrap when dependenc
 
   const shr1 = await project.loadShrinkwrap()
 
-  t.equal(shr1.packages['/'].dependencies['highmaps-release'], '5.0.11')
+  t.equal(shr1.dependencies['highmaps-release'], '5.0.11')
 
   await rimraf('node_modules')
 
diff --git a/test/uninstall.ts b/test/uninstall.ts
index 3b3e9b13ed..6c2e9baf6d 100644
--- a/test/uninstall.ts
+++ b/test/uninstall.ts
@@ -81,9 +81,12 @@ test('uninstall package with dependencies and do not touch other deps', async fu
   t.deepEqual(pkgJson.dependencies, {'is-negative': '^2.1.0'}, 'camelcase-keys has been removed from dependencies')
 
   const shr = await project.loadShrinkwrap()
-  t.deepEqual(shr.packages['/'].dependencies, {
+  t.deepEqual(shr.dependencies, {
     'is-negative': '2.1.0',
   }, 'camelcase-keys removed from shrinkwrap dependencies')
+  t.deepEqual(shr.specifiers, {
+    'is-negative': '^2.1.0',
+  }, 'camelcase-keys removed from shrinkwrap specifiers')
 })
 
 test('uninstall package with its bin files', async function (t) {