diff --git a/AppServer/google/appengine/tools/devappserver2/module.py b/AppServer/google/appengine/tools/devappserver2/module.py
index 77753bd57e..98ae1f5465 100644
--- a/AppServer/google/appengine/tools/devappserver2/module.py
+++ b/AppServer/google/appengine/tools/devappserver2/module.py
@@ -581,7 +581,7 @@ def _handle_request_impl(self, environ, start_response, inst=None,
     try:
       environ['SERVER_PORT'] = environ['HTTP_HOST'].split(':')[1]
     except IndexError:
-      scheme = environ['HTTP_X_FORWARDED_PROTO']
+      scheme = environ.get('HTTP_X_FORWARDED_PROTO', 'http')
       if scheme == 'http':
         environ['SERVER_PORT'] = 80
       else:
diff --git a/AppTaskQueue/appscale/taskqueue/push_worker.py b/AppTaskQueue/appscale/taskqueue/push_worker.py
index 70fdeed0bd..e38567c83e 100644
--- a/AppTaskQueue/appscale/taskqueue/push_worker.py
+++ b/AppTaskQueue/appscale/taskqueue/push_worker.py
@@ -152,20 +152,8 @@ def execute_task(task, headers, args):
         update_task(args['task_name'], TASK_STATES.FAILED)
         return
 
-      # Targets do not get X-Forwarded-Proto from nginx, they use haproxy port.
-      headers['X-Forwarded-Proto'] = url.scheme
-      if url.scheme == 'http':
-        connection = httplib.HTTPConnection(remote_host, url.port)
-      elif url.scheme == 'https':
-        connection = httplib.HTTPSConnection(remote_host, url.port)
-      else:
-        logger.error("Task %s tried to use url scheme %s, "
-                     "which is not supported." % (
-                     args['task_name'], url.scheme))
-
-      skip_host = False
-      if 'host' in headers or 'Host' in headers:
-        skip_host = True
+      # Tasks should use HTTP to bypass scheme redirects since they use HAProxy.
+      connection = httplib.HTTPConnection(remote_host, url.port)
 
       skip_accept_encoding = False
       if 'accept-encoding' in headers or 'Accept-Encoding' in headers:
@@ -173,7 +161,6 @@ def execute_task(task, headers, args):
 
       connection.putrequest(method,
                             urlpath,
-                            skip_host=skip_host,
                             skip_accept_encoding=skip_accept_encoding)
 
       # Update the task headers
@@ -181,6 +168,14 @@ def execute_task(task, headers, args):
       headers['X-AppEngine-TaskExecutionCount'] = str(task.request.retries)
 
       for header in headers:
+        # Avoid changing the host header from the HAProxy location. Though GAE
+        # supports host-based routing, we need to make some additional changes
+        # before we can behave in a similar manner. Using the HAProxy location
+        # for the host header allows the dispatcher to try extracting a port,
+        # which it uses to set environment variables for the request.
+        if header == b'Host':
+          continue
+
         connection.putheader(header, headers[header])
 
       if 'content-type' not in headers or 'Content-Type' not in headers:
diff --git a/Hermes/setup.py b/Hermes/setup.py
index 22dfc96283..10e1272e94 100644
--- a/Hermes/setup.py
+++ b/Hermes/setup.py
@@ -15,7 +15,7 @@
     'kazoo',
     'tornado',
     'psutil==5.6.3',
-    'attrs>=18.1.0',
+    'attrs>=18.1.0,<19.2.0',  # 19.2.0 removed "convert" attribute.
     'mock',
   ],
   test_suite='appscale.hermes',
diff --git a/RELEASE b/RELEASE
index 6623b5fd0f..0b2fd384f4 100644
--- a/RELEASE
+++ b/RELEASE
@@ -5,6 +5,13 @@
 /_/  |_/ .___/ .___//____/\___/\__,_/_/ \___/
       /_/   /_/
 
+AppScale version 3.8.1, released October 2019
+Highlights of features and defects fixed in this release:
+ - Fixes a regression in the 3.8 release where push tasks could not be executed
+   if the task URL had "secure: always" set.
+
+Known Issues:
+
 AppScale version 3.8.0, released September 2019
 Highlights of features and defects fixed in this release:
  - Login continue scheme
diff --git a/VERSION b/VERSION
index ae30a4da65..0c1ca211cc 100644
--- a/VERSION
+++ b/VERSION
@@ -4,4 +4,4 @@
  / ___ |/ /_/ / /_/ /___/ / /__/ /_/ / //  __/
 /_/  |_/ .___/ .___//____/\___/\__,_/_/ \___/ 
       /_/   /_/                               
-AppScale version 3.8.0
+AppScale version 3.8.1