diff --git a/lib/pip.js b/lib/pip.js
index cc13d073..5f8d5266 100644
--- a/lib/pip.js
+++ b/lib/pip.js
@@ -34,7 +34,8 @@ function installRequirements(requirementsPath, targetFolder, serverless, service
   let cmdOptions;
   let pipCmd = [
     options.pythonBin, '-m', 'pip', '--isolated', 'install',
-    '-t', targetRequirementsFolder, '-r', dotSlsReqs,
+    '-t', dockerPathForWin(options, targetRequirementsFolder),
+    '-r', dockerPathForWin(options, dotSlsReqs),
     ...options.pipCmdExtraArgs,
   ];
   if (!options.dockerizePip) {
@@ -117,7 +118,19 @@ function installRequirements(requirementsPath, targetFolder, serverless, service
 };
 
 /**
- * create a filtered requirements.txt without anything from noDeploy
+ * convert path from Windows style to Linux style, if needed
+ * @param {Object} options
+ * @param {string} path
+ * @return {string}
+ */
+function dockerPathForWin(options, path) {
+  if (process.platform === 'win32' && options.dockerizePip) {
+    return path.replace('\\', '/');
+  }
+  return path;
+}
+
+/** create a filtered requirements.txt without anything from noDeploy
  * @param {string} source requirements
  * @param {string} target requirements where results are written
  * @param {Object} options