diff --git a/.gitignore b/.gitignore
index a8e3184cc..6cbc9d2a9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,7 +24,7 @@ util/bot/nasm-win32.exe
 util/bot/perl-win32
 util/bot/perl-win32.zip
 util/bot/sde-linux64
-util/bot/sde-linux64.tar.bz2
+util/bot/sde-linux64.tar.xz
 util/bot/sde-win32
-util/bot/sde-win32.tar.bz2
+util/bot/sde-win32.tar.xz
 util/bot/win_toolchain.json
diff --git a/util/bot/DEPS b/util/bot/DEPS
index e3c95f364..574d94bfe 100644
--- a/util/bot/DEPS
+++ b/util/bot/DEPS
@@ -187,7 +187,7 @@ hooks = [
     'action': [ 'download_from_google_storage',
                 '--no_resume',
                 '--bucket', 'chrome-boringssl-sde',
-                '-s', 'boringssl/util/bot/sde-linux64.tar.bz2.sha1'
+                '-s', 'boringssl/util/bot/sde-linux64.tar.xz.sha1'
     ],
   },
   {
@@ -196,7 +196,7 @@ hooks = [
     'condition': 'checkout_sde and host_os == "linux"',
     'action': [ 'python3',
                 'boringssl/util/bot/extract.py',
-                'boringssl/util/bot/sde-linux64.tar.bz2',
+                'boringssl/util/bot/sde-linux64.tar.xz',
                 'boringssl/util/bot/sde-linux64/',
     ],
   },
@@ -207,7 +207,7 @@ hooks = [
     'action': [ 'download_from_google_storage',
                 '--no_resume',
                 '--bucket', 'chrome-boringssl-sde',
-                '-s', 'boringssl/util/bot/sde-win32.tar.bz2.sha1'
+                '-s', 'boringssl/util/bot/sde-win32.tar.xz.sha1'
     ],
   },
   {
@@ -216,7 +216,7 @@ hooks = [
     'condition': 'checkout_sde and host_os == "win"',
     'action': [ 'python3',
                 'boringssl/util/bot/extract.py',
-                'boringssl/util/bot/sde-win32.tar.bz2',
+                'boringssl/util/bot/sde-win32.tar.xz',
                 'boringssl/util/bot/sde-win32/',
     ],
   },
diff --git a/util/bot/UPDATING b/util/bot/UPDATING
index 2e6b91445..dad6192b0 100644
--- a/util/bot/UPDATING
+++ b/util/bot/UPDATING
@@ -46,13 +46,13 @@ perl-win32.zip: Update to the latest 64-bit prebuilt "Portable" edition of
 
     The current revision is strawberry-perl-5.26.2.1-64bit-portable.zip.
 
-Finally, update sde-linux64.tar.bz2 and sde-win32.tar.bz2 by downloading the
+Finally, update sde-linux64.tar.xz and sde-win32.tar.xz by downloading the
 latet release from Intel at
 https://software.intel.com/en-us/articles/intel-software-development-emulator,
 but upload it with the following command. (Note the bucket is different.)
 
-    upload_to_google_storage.py -b chrome-boringssl-sde sde-linux64.tar.bz2 sde-win32.tar.bz2
+    upload_to_google_storage.py -b chrome-boringssl-sde sde-linux64.tar.xz sde-win32.tar.xz
 
-The current revision is sde-external-8.50.0-2020-03-26-*.tar.bz2.
+The current revision is sde-external-9.0.0-2021-11-07-*.tar.xz.
 
 When adding new files, remember to update .gitignore.
diff --git a/util/bot/extract.py b/util/bot/extract.py
index 9b1b88a22..4ef5f6517 100644
--- a/util/bot/extract.py
+++ b/util/bot/extract.py
@@ -118,6 +118,8 @@ def main(args):
     entries = IterateTar(archive, 'gz')
   elif archive.endswith('.tar.bz2'):
     entries = IterateTar(archive, 'bz2')
+  elif archive.endswith('.tar.xz'):
+    entries = IterateTar(archive, 'xz')
   else:
     raise ValueError(archive)
 
diff --git a/util/bot/sde-linux64.tar.bz2.sha1 b/util/bot/sde-linux64.tar.bz2.sha1
deleted file mode 100644
index c450f63df..000000000
--- a/util/bot/sde-linux64.tar.bz2.sha1
+++ /dev/null
@@ -1 +0,0 @@
-baacb5a29755e299d3384c41c6dd55f65235ef1f
\ No newline at end of file
diff --git a/util/bot/sde-linux64.tar.xz.sha1 b/util/bot/sde-linux64.tar.xz.sha1
new file mode 100644
index 000000000..f9ee19835
--- /dev/null
+++ b/util/bot/sde-linux64.tar.xz.sha1
@@ -0,0 +1 @@
+8bba6e01a47b2cfd9e7429f77256db540031ff43
\ No newline at end of file
diff --git a/util/bot/sde-win32.tar.bz2.sha1 b/util/bot/sde-win32.tar.bz2.sha1
deleted file mode 100644
index b96074703..000000000
--- a/util/bot/sde-win32.tar.bz2.sha1
+++ /dev/null
@@ -1 +0,0 @@
-cc2d77ff4a221165a8bb13f43ccfbff6550b90c8
\ No newline at end of file
diff --git a/util/bot/sde-win32.tar.xz.sha1 b/util/bot/sde-win32.tar.xz.sha1
new file mode 100644
index 000000000..dbaf87fd0
--- /dev/null
+++ b/util/bot/sde-win32.tar.xz.sha1
@@ -0,0 +1 @@
+59ef225031e14e5ac257ada61d416f6ea0c9c080
\ No newline at end of file