diff --git a/index.js b/index.js
index 6e55fdb3..1857b239 100644
--- a/index.js
+++ b/index.js
@@ -3,6 +3,7 @@
 
 const BbPromise = require('bluebird');
 const fse = require('fs-extra');
+const values = require('lodash.values');
 const {
   addVendorHelper,
   removeVendorHelper,
@@ -83,6 +84,13 @@ class ServerlessPythonRequirements {
     return options;
   }
 
+  get targetFuncs() {
+    let inputOpt = this.serverless.processedInput.options;
+    return inputOpt.function
+      ? [inputOpt.functionObj]
+      : values(this.serverless.service.functions);
+  }
+
   /**
    * The plugin constructor
    * @param {Object} serverless
diff --git a/lib/clean.js b/lib/clean.js
index f3c4fbef..332ceb37 100644
--- a/lib/clean.js
+++ b/lib/clean.js
@@ -1,7 +1,6 @@
 const BbPromise = require('bluebird');
 const fse = require('fs-extra');
 const path = require('path');
-const values = require('lodash.values');
 
 BbPromise.promisifyAll(fse);
 
@@ -13,7 +12,7 @@ function cleanup() {
   const artifacts = ['.requirements'];
   if (this.options.zip) {
     if (this.serverless.service.package.individually) {
-      values(this.serverless.service.functions).forEach(f => {
+      this.targetFuncs.forEach(f => {
         artifacts.push(path.join(f.module, '.requirements.zip'));
         artifacts.push(path.join(f.module, 'unzip_requirements.py'));
       });
diff --git a/lib/inject.js b/lib/inject.js
index 337813a3..973ba99b 100644
--- a/lib/inject.js
+++ b/lib/inject.js
@@ -4,7 +4,6 @@ const glob = require('glob-all');
 const get = require('lodash.get');
 const set = require('lodash.set');
 const path = require('path');
-const values = require('lodash.values');
 const JSZip = require('jszip');
 const { writeZip, zipFile } = require('./zipTree');
 
@@ -75,12 +74,8 @@ function moveModuleUp(source, target, module) {
 function injectAllRequirements(funcArtifact) {
   this.serverless.cli.log('Injecting required Python packages to package...');
 
-  if (this.options.zip) {
-    return;
-  }
-
   if (this.serverless.service.package.individually) {
-    return BbPromise.resolve(values(this.serverless.service.functions))
+    return BbPromise.resolve(this.targetFuncs)
       .filter(func =>
         (func.runtime || this.serverless.service.provider.runtime).match(
           /^python.*/
@@ -107,14 +102,16 @@ function injectAllRequirements(funcArtifact) {
           return func;
         }
       })
-      .map(func =>
-        injectRequirements(
-          path.join('.serverless', func.module, 'requirements'),
-          func.package.artifact,
-          this.options
-        )
-      );
-  } else {
+      .map(func => {
+        return this.options.zip
+          ? func
+          : injectRequirements(
+              path.join('.serverless', func.module, 'requirements'),
+              func.package.artifact,
+              this.options
+            );
+      });
+  } else if (!this.options.zip) {
     return injectRequirements(
       path.join('.serverless', 'requirements'),
       this.serverless.service.package.artifact || funcArtifact,
diff --git a/lib/pip.js b/lib/pip.js
index 2b061371..7d555b31 100644
--- a/lib/pip.js
+++ b/lib/pip.js
@@ -4,7 +4,6 @@ const path = require('path');
 const get = require('lodash.get');
 const set = require('lodash.set');
 const { spawnSync } = require('child_process');
-const values = require('lodash.values');
 const { buildImage, getBindPath, getDockerUid } = require('./docker');
 const { getSlimPackageCommands } = require('./slim');
 
@@ -210,7 +209,7 @@ function installAllRequirements() {
   fse.ensureDirSync(path.join(this.servicePath, '.serverless'));
   if (this.serverless.service.package.individually) {
     let doneModules = [];
-    values(this.serverless.service.functions)
+    this.targetFuncs
       .filter(func =>
         (func.runtime || this.serverless.service.provider.runtime).match(
           /^python.*/
diff --git a/lib/zip.js b/lib/zip.js
index eba21976..1139d0d9 100644
--- a/lib/zip.js
+++ b/lib/zip.js
@@ -2,7 +2,6 @@ const fse = require('fs-extra');
 const path = require('path');
 const get = require('lodash.get');
 const set = require('lodash.set');
-const values = require('lodash.values');
 const uniqBy = require('lodash.uniqby');
 const BbPromise = require('bluebird');
 const JSZip = require('jszip');
@@ -17,7 +16,7 @@ BbPromise.promisifyAll(fse);
 function addVendorHelper() {
   if (this.options.zip) {
     if (this.serverless.service.package.individually) {
-      return BbPromise.resolve(values(this.serverless.service.functions))
+      return BbPromise.resolve(this.targetFuncs)
         .map(f => {
           if (!get(f, 'package.include')) {
             set(f, ['package', 'include'], []);
@@ -63,7 +62,7 @@ function addVendorHelper() {
 function removeVendorHelper() {
   if (this.options.zip && this.options.cleanupZipHelper) {
     if (this.serverless.service.package.individually) {
-      return BbPromise.resolve(values(this.serverless.service.functions))
+      return BbPromise.resolve(this.targetFuncs)
         .map(f => {
           if (!get(f, 'module')) {
             set(f, ['module'], '.');
@@ -95,7 +94,7 @@ function removeVendorHelper() {
 function packRequirements() {
   if (this.options.zip) {
     if (this.serverless.service.package.individually) {
-      return BbPromise.resolve(values(this.serverless.service.functions))
+      return BbPromise.resolve(this.targetFuncs)
         .map(f => {
           if (!get(f, 'module')) {
             set(f, ['module'], '.');