diff --git a/contrib/packaging/hgpackaging/wix.py b/contrib/packaging/hgpackaging/wix.py
--- a/contrib/packaging/hgpackaging/wix.py
+++ b/contrib/packaging/hgpackaging/wix.py
@@ -38,15 +38,7 @@ SUPPORT_WXS = [
 EXTRA_PACKAGES = {
     'distutils',
     'enum',
-    'imagesize',
     'pygments',
-    'sphinx',
-}
-
-
-EXCLUDES = {
-    # Python 3 only.
-    'jinja2.asyncsupport',
 }
 
 
@@ -161,7 +153,7 @@ def build_installer(source_dir: pathlib.
 
     build_py2exe(source_dir, hg_build_dir,
                  python_exe, 'wix', requirements_txt,
-                 extra_packages=EXTRA_PACKAGES, extra_excludes=EXCLUDES)
+                 extra_packages=EXTRA_PACKAGES)
 
     version = version or normalize_version(find_version(source_dir))
     print('using version string: %s' % version)
diff --git a/contrib/packaging/wix/requirements.txt b/contrib/packaging/wix/requirements.txt
--- a/contrib/packaging/wix/requirements.txt
+++ b/contrib/packaging/wix/requirements.txt
@@ -2,28 +2,8 @@
 # This file is autogenerated by pip-compile
 # To update, run:
 #
-#    pip-compile --generate-hashes contrib/packaging/wix/requirements.txt.in -o contrib/packaging/wix/requirements.txt -U
+#    pip-compile --generate-hashes contrib/packaging/wix/requirements.txt.in -o contrib/packaging/wix/requirements.txt
 #
-alabaster==0.7.12 \
-    --hash=sha256:446438bdcca0e05bd45ea2de1668c1d9b032e1a9154c2c259092d77031ddd359 \
-    --hash=sha256:a661d72d58e6ea8a57f7a86e37d86716863ee5e92788398526d58b26a4e4dc02 \
-    # via sphinx
-babel==2.6.0 \
-    --hash=sha256:6778d85147d5d85345c14a26aada5e478ab04e39b078b0745ee6870c2b5cf669 \
-    --hash=sha256:8cba50f48c529ca3fa18cf81fa9403be176d374ac4d60738b839122dfaaa3d23 \
-    # via sphinx
-certifi==2018.11.29 \
-    --hash=sha256:47f9c83ef4c0c621eaef743f133f09fa8a74a9b75f037e8624f83bd1b6626cb7 \
-    --hash=sha256:993f830721089fef441cdfeb4b2c8c9df86f0c63239f06bd025a76a7daddb033 \
-    # via requests
-chardet==3.0.4 \
-    --hash=sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae \
-    --hash=sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691 \
-    # via requests
-colorama==0.4.1 \
-    --hash=sha256:05eed71e2e327246ad6b38c540c4a3117230b19679b875190486ddd2d721422d \
-    --hash=sha256:f8ac84de7840f5b9c4e3347b3c1eaa50f7e49c2b07596221daec5edaabbd7c48 \
-    # via sphinx
 docutils==0.14 \
     --hash=sha256:02aec4bd92ab067f6ff27a38a38a41173bf01bed8f89157768c1573f53e474a6 \
     --hash=sha256:51e64ef2ebfb29cae1faa133b3710143496eca21c530f3f71424d77687764274 \
@@ -32,66 +12,12 @@ enum==0.4.7 \
     --hash=sha256:8c7cf3587eda51008bcc1eed99ea2c331ccd265c231dbaa95ec5258d3dc03100
 future==0.17.1 \
     --hash=sha256:67045236dcfd6816dc439556d009594abf643e5eb48992e36beac09c2ca659b8
-idna==2.8 \
-    --hash=sha256:c357b3f628cf53ae2c4c05627ecc484553142ca23264e593d327bcde5e9c3407 \
-    --hash=sha256:ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c \
-    # via requests
-imagesize==1.1.0 \
-    --hash=sha256:3f349de3eb99145973fefb7dbe38554414e5c30abd0c8e4b970a7c9d09f3a1d8 \
-    --hash=sha256:f3832918bc3c66617f92e35f5d70729187676313caa60c187eb0f28b8fe5e3b5 \
-    # via sphinx
-jinja2==2.10 \
-    --hash=sha256:74c935a1b8bb9a3947c50a54766a969d4846290e1e788ea44c1392163723c3bd \
-    --hash=sha256:f84be1bb0040caca4cea721fcbbbbd61f9be9464ca236387158b0feea01914a4 \
-    # via sphinx
-markupsafe==1.1.1 \
-    --hash=sha256:00bc623926325b26bb9605ae9eae8a215691f33cae5df11ca5424f06f2d1f473 \
-    --hash=sha256:09027a7803a62ca78792ad89403b1b7a73a01c8cb65909cd876f7fcebd79b161 \
-    --hash=sha256:09c4b7f37d6c648cb13f9230d847adf22f8171b1ccc4d5682398e77f40309235 \
-    --hash=sha256:1027c282dad077d0bae18be6794e6b6b8c91d58ed8a8d89a89d59693b9131db5 \
-    --hash=sha256:24982cc2533820871eba85ba648cd53d8623687ff11cbb805be4ff7b4c971aff \
-    --hash=sha256:29872e92839765e546828bb7754a68c418d927cd064fd4708fab9fe9c8bb116b \
-    --hash=sha256:43a55c2930bbc139570ac2452adf3d70cdbb3cfe5912c71cdce1c2c6bbd9c5d1 \
-    --hash=sha256:46c99d2de99945ec5cb54f23c8cd5689f6d7177305ebff350a58ce5f8de1669e \
-    --hash=sha256:500d4957e52ddc3351cabf489e79c91c17f6e0899158447047588650b5e69183 \
-    --hash=sha256:535f6fc4d397c1563d08b88e485c3496cf5784e927af890fb3c3aac7f933ec66 \
-    --hash=sha256:62fe6c95e3ec8a7fad637b7f3d372c15ec1caa01ab47926cfdf7a75b40e0eac1 \
-    --hash=sha256:6dd73240d2af64df90aa7c4e7481e23825ea70af4b4922f8ede5b9e35f78a3b1 \
-    --hash=sha256:717ba8fe3ae9cc0006d7c451f0bb265ee07739daf76355d06366154ee68d221e \
-    --hash=sha256:79855e1c5b8da654cf486b830bd42c06e8780cea587384cf6545b7d9ac013a0b \
-    --hash=sha256:7c1699dfe0cf8ff607dbdcc1e9b9af1755371f92a68f706051cc8c37d447c905 \
-    --hash=sha256:88e5fcfb52ee7b911e8bb6d6aa2fd21fbecc674eadd44118a9cc3863f938e735 \
-    --hash=sha256:8defac2f2ccd6805ebf65f5eeb132adcf2ab57aa11fdf4c0dd5169a004710e7d \
-    --hash=sha256:98c7086708b163d425c67c7a91bad6e466bb99d797aa64f965e9d25c12111a5e \
-    --hash=sha256:9add70b36c5666a2ed02b43b335fe19002ee5235efd4b8a89bfcf9005bebac0d \
-    --hash=sha256:9bf40443012702a1d2070043cb6291650a0841ece432556f784f004937f0f32c \
-    --hash=sha256:ade5e387d2ad0d7ebf59146cc00c8044acbd863725f887353a10df825fc8ae21 \
-    --hash=sha256:b00c1de48212e4cc9603895652c5c410df699856a2853135b3967591e4beebc2 \
-    --hash=sha256:b1282f8c00509d99fef04d8ba936b156d419be841854fe901d8ae224c59f0be5 \
-    --hash=sha256:b2051432115498d3562c084a49bba65d97cf251f5a331c64a12ee7e04dacc51b \
-    --hash=sha256:ba59edeaa2fc6114428f1637ffff42da1e311e29382d81b339c1817d37ec93c6 \
-    --hash=sha256:c8716a48d94b06bb3b2524c2b77e055fb313aeb4ea620c8dd03a105574ba704f \
-    --hash=sha256:cd5df75523866410809ca100dc9681e301e3c27567cf498077e8551b6d20e42f \
-    --hash=sha256:e249096428b3ae81b08327a63a485ad0878de3fb939049038579ac0ef61e17e7 \
-    # via jinja2
-packaging==19.0 \
-    --hash=sha256:0c98a5d0be38ed775798ece1b9727178c4469d9c3b4ada66e8e6b7849f8732af \
-    --hash=sha256:9e1cbf8c12b1f1ce0bb5344b8d7ecf66a6f8a6e91bcb0c84593ed6d3ab5c4ab3 \
-    # via sphinx
 pygments==2.3.1 \
     --hash=sha256:5ffada19f6203563680669ee7f53b64dabbeb100eb51b61996085e99c03b284a \
     --hash=sha256:e8218dd399a61674745138520d0d4cf2621d7e032439341bc3f647bff125818d
-pyparsing==2.3.1 \
-    --hash=sha256:66c9268862641abcac4a96ba74506e594c884e3f57690a696d21ad8210ed667a \
-    --hash=sha256:f6c5ef0d7480ad048c054c37632c67fca55299990fff127850181659eea33fc3 \
-    # via packaging
 pypiwin32==223 \
     --hash=sha256:67adf399debc1d5d14dffc1ab5acacb800da569754fafdc576b2a039485aa775 \
     --hash=sha256:71be40c1fbd28594214ecaecb58e7aa8b708eabfa0125c8a109ebd51edbd776a
-pytz==2018.9 \
-    --hash=sha256:32b0891edff07e28efe91284ed9c31e123d84bea3fd98e1f72be2508f43ef8d9 \
-    --hash=sha256:d5f05e487007e29e03409f9398d074e158d920d36eb82eaf66fb1136b0c5374c \
-    # via babel
 pywin32==224 \
     --hash=sha256:22e218832a54ed206452c8f3ca9eff07ef327f8e597569a4c2828be5eaa09a77 \
     --hash=sha256:32b37abafbfeddb0fe718008d6aada5a71efa2874f068bee1f9e703983dcc49a \
@@ -102,31 +28,3 @@ pywin32==224 \
     --hash=sha256:6dbc4219fe45ece6a0cc6baafe0105604fdee551b5e876dc475d3955b77190ec \
     --hash=sha256:9bd07746ce7f2198021a9fa187fa80df7b221ec5e4c234ab6f00ea355a3baf99 \
     # via pypiwin32
-requests==2.21.0 \
-    --hash=sha256:502a824f31acdacb3a35b6690b5fbf0bc41d63a24a45c4004352b0242707598e \
-    --hash=sha256:7bf2a778576d825600030a110f3c0e3e8edc51dfaafe1c146e39a2027784957b \
-    # via sphinx
-six==1.12.0 \
-    --hash=sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c \
-    --hash=sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73 \
-    # via packaging, sphinx
-snowballstemmer==1.2.1 \
-    --hash=sha256:919f26a68b2c17a7634da993d91339e288964f93c274f1343e3bbbe2096e1128 \
-    --hash=sha256:9f3bcd3c401c3e862ec0ebe6d2c069ebc012ce142cce209c098ccb5b09136e89 \
-    # via sphinx
-sphinx==1.8.4 \
-    --hash=sha256:b53904fa7cb4b06a39409a492b949193a1b68cc7241a1a8ce9974f86f0d24287 \
-    --hash=sha256:c1c00fc4f6e8b101a0d037065043460dffc2d507257f2f11acaed71fd2b0c83c
-sphinxcontrib-websupport==1.1.0 \
-    --hash=sha256:68ca7ff70785cbe1e7bccc71a48b5b6d965d79ca50629606c7861a21b206d9dd \
-    --hash=sha256:9de47f375baf1ea07cdb3436ff39d7a9c76042c10a769c52353ec46e4e8fc3b9 \
-    # via sphinx
-typing==3.6.6 \
-    --hash=sha256:4027c5f6127a6267a435201981ba156de91ad0d1d98e9ddc2aa173453453492d \
-    --hash=sha256:57dcf675a99b74d64dacf6fba08fb17cf7e3d5fdff53d4a30ea2a5e7e52543d4 \
-    --hash=sha256:a4c8473ce11a65999c8f59cb093e70686b6c84c98df58c1dae9b3b196089858a \
-    # via sphinx
-urllib3==1.24.1 \
-    --hash=sha256:61bf29cada3fc2fbefad4fdf059ea4bd1b4a86d2b6d15e1c7c0b582b9752fe39 \
-    --hash=sha256:de9529817c93f27c8ccbfead6985011db27bd0ddfcdb2d86f3f663385c6a9c22 \
-    # via requests
diff --git a/contrib/packaging/wix/requirements.txt.in b/contrib/packaging/wix/requirements.txt.in
--- a/contrib/packaging/wix/requirements.txt.in
+++ b/contrib/packaging/wix/requirements.txt.in
@@ -3,4 +3,3 @@ enum
 future
 pygments
 pypiwin32
-sphinx