diff --git a/.gitmodules b/.gitmodules
index 81b39d10..9bab5186 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,21 @@
 [submodule "third_party/ycmd"]
 	path = third_party/ycmd
 	url = https://github.com/Valloric/ycmd
+[submodule "third_party/requests_deps/idna"]
+	path = third_party/requests_deps/idna
+	url = https://github.com/kjd/idna
+[submodule "third_party/requests_deps/certifi"]
+	path = third_party/requests_deps/certifi
+	url = https://github.com/certifi/python-certifi
+[submodule "third_party/requests_deps/chardet"]
+	path = third_party/requests_deps/chardet
+	url = https://github.com/chardet/chardet
+[submodule "third_party/requests_deps/urllib3"]
+	path = third_party/requests_deps/urllib3
+	url = https://github.com/urllib3/urllib3
+[submodule "third_party/requests_deps/requests"]
+	path = third_party/requests_deps/requests
+	url = https://github.com/kennethreitz/requests
+[submodule "third_party/python-future"]
+	path = third_party/python-future
+	url = https://github.com/PythonCharmers/python-future
diff --git a/.ycm_extra_conf.py b/.ycm_extra_conf.py
index 9c34bbae..a53d1769 100755
--- a/.ycm_extra_conf.py
+++ b/.ycm_extra_conf.py
@@ -28,18 +28,16 @@
 #
 # For more information, please refer to <http://unlicense.org/>
 
-import os
+import os.path as p
 import subprocess
 
-DIR_OF_THIS_SCRIPT = os.path.abspath( os.path.dirname( __file__ ) )
-DIR_OF_THIRD_PARTY = os.path.join( DIR_OF_THIS_SCRIPT, 'third_party' )
-DIR_OF_YCMD_THIRD_PARTY = os.path.join( DIR_OF_THIRD_PARTY,
-                                        'ycmd', 'third_party' )
+DIR_OF_THIS_SCRIPT = p.abspath( p.dirname( __file__ ) )
+DIR_OF_THIRD_PARTY = p.join( DIR_OF_THIS_SCRIPT, 'third_party' )
 
 
 def GetStandardLibraryIndexInSysPath( sys_path ):
   for index, path in enumerate( sys_path ):
-    if os.path.isfile( os.path.join( path, 'os.py' ) ):
+    if p.isfile( p.join( path, 'os.py' ) ):
       return index
   raise RuntimeError( 'Could not find standard library path in Python path.' )
 
@@ -47,11 +45,17 @@ def GetStandardLibraryIndexInSysPath( sys_path ):
 def PythonSysPath( **kwargs ):
   sys_path = kwargs[ 'sys_path' ]
 
-  dependencies = [ os.path.join( DIR_OF_THIS_SCRIPT, 'python' ),
-                   os.path.join( DIR_OF_THIRD_PARTY, 'requests-futures' ),
-                   os.path.join( DIR_OF_THIRD_PARTY, 'ycmd' ),
-                   os.path.join( DIR_OF_YCMD_THIRD_PARTY, 'frozendict' ),
-                   os.path.join( DIR_OF_YCMD_THIRD_PARTY, 'requests' ) ]
+  dependencies = [ p.join( DIR_OF_THIS_SCRIPT, 'python' ),
+                   p.join( DIR_OF_THIRD_PARTY, 'requests-futures' ),
+                   p.join( DIR_OF_THIRD_PARTY, 'ycmd' ),
+                   p.join( DIR_OF_THIRD_PARTY, 'requests_deps', 'idna' ),
+                   p.join( DIR_OF_THIRD_PARTY, 'requests_deps', 'chardet' ),
+                   p.join( DIR_OF_THIRD_PARTY,
+                           'requests_deps',
+                           'urllib3',
+                           'src' ),
+                   p.join( DIR_OF_THIRD_PARTY, 'requests_deps', 'certifi' ),
+                   p.join( DIR_OF_THIRD_PARTY, 'requests_deps', 'requests' ) ]
 
   # The concurrent.futures module is part of the standard library on Python 3.
   interpreter_path = kwargs[ 'interpreter_path' ]
@@ -59,11 +63,10 @@ def PythonSysPath( **kwargs ):
     interpreter_path, '-c', 'import sys; print( sys.version_info[ 0 ] )' ]
   ).rstrip().decode( 'utf8' ) )
   if major_version == 2:
-    dependencies.append( os.path.join( DIR_OF_THIRD_PARTY, 'pythonfutures' ) )
+    dependencies.append( p.join( DIR_OF_THIRD_PARTY, 'pythonfutures' ) )
 
   sys_path[ 0:0 ] = dependencies
   sys_path.insert( GetStandardLibraryIndexInSysPath( sys_path ) + 1,
-                   os.path.join( DIR_OF_YCMD_THIRD_PARTY, 'python-future',
-                                 'src' ) )
+                   p.join( DIR_OF_THIRD_PARTY, 'python-future', 'src' ) )
 
   return sys_path
diff --git a/autoload/youcompleteme.vim b/autoload/youcompleteme.vim
index 8a4dff82..eb2e1f4c 100644
--- a/autoload/youcompleteme.vim
+++ b/autoload/youcompleteme.vim
@@ -194,13 +194,19 @@ import vim
 
 root_folder = p.normpath( p.join( vim.eval( 's:script_folder_path' ), '..' ) )
 third_party_folder = p.join( root_folder, 'third_party' )
-ycmd_third_party_folder = p.join( third_party_folder, 'ycmd', 'third_party' )
 
 # Add dependencies to Python path.
 dependencies = [ p.join( root_folder, 'python' ),
                  p.join( third_party_folder, 'requests-futures' ),
                  p.join( third_party_folder, 'ycmd' ),
-                 p.join( ycmd_third_party_folder, 'requests' ) ]
+                 p.join( third_party_folder, 'requests_deps', 'idna' ),
+                 p.join( third_party_folder, 'requests_deps', 'chardet' ),
+                 p.join( third_party_folder,
+                         'requests_deps',
+                         'urllib3',
+                         'src' ),
+                 p.join( third_party_folder, 'requests_deps', 'certifi' ),
+                 p.join( third_party_folder, 'requests_deps', 'requests' ) ]
 
 # The concurrent.futures module is part of the standard library on Python 3.
 if sys.version_info[ 0 ] == 2:
@@ -213,7 +219,7 @@ try:
   # The python-future module must be inserted after the standard library path.
   from ycmd.server_utils import GetStandardLibraryIndexInSysPath
   sys.path.insert( GetStandardLibraryIndexInSysPath() + 1,
-                   p.join( ycmd_third_party_folder, 'python-future', 'src' ) )
+                   p.join( third_party_folder, 'python-future', 'src' ) )
 
   # Import the modules used in this file.
   from ycm import base, vimsupport, youcompleteme
diff --git a/third_party/python-future b/third_party/python-future
new file mode 160000
index 00000000..a8114e48
--- /dev/null
+++ b/third_party/python-future
@@ -0,0 +1 @@
+Subproject commit a8114e48ce7dbc4cecbf6a764d73e83d03b0d6ba
diff --git a/third_party/requests_deps/certifi b/third_party/requests_deps/certifi
new file mode 160000
index 00000000..5b9e05c0
--- /dev/null
+++ b/third_party/requests_deps/certifi
@@ -0,0 +1 @@
+Subproject commit 5b9e05c06e69fe5c7835052cfc3ae1c899dfc8b1
diff --git a/third_party/requests_deps/chardet b/third_party/requests_deps/chardet
new file mode 160000
index 00000000..9b8c5c2f
--- /dev/null
+++ b/third_party/requests_deps/chardet
@@ -0,0 +1 @@
+Subproject commit 9b8c5c2fb118d76c6beeab9affd01c332732a530
diff --git a/third_party/requests_deps/idna b/third_party/requests_deps/idna
new file mode 160000
index 00000000..0f50bdce
--- /dev/null
+++ b/third_party/requests_deps/idna
@@ -0,0 +1 @@
+Subproject commit 0f50bdcea71e6602bf4cd22897970d71fc4074d9
diff --git a/third_party/requests_deps/requests b/third_party/requests_deps/requests
new file mode 160000
index 00000000..6cfbe1ae
--- /dev/null
+++ b/third_party/requests_deps/requests
@@ -0,0 +1 @@
+Subproject commit 6cfbe1aedd56f8c2f9ff8b968efe65b22669795b
diff --git a/third_party/requests_deps/urllib3 b/third_party/requests_deps/urllib3
new file mode 160000
index 00000000..a6ec68a5
--- /dev/null
+++ b/third_party/requests_deps/urllib3
@@ -0,0 +1 @@
+Subproject commit a6ec68a5c5c5743c59fe5c62c635c929586c429b