diff --git a/glibc.spec b/glibc.spec
index 01dc5a2..17aed54 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -1,4 +1,4 @@
-%define glibcsrcdir glibc-2.33.9000-979-g9a7ab0769b
+%define glibcsrcdir glibc-2.33.9000-982-gd34ed66f96
 %define glibcversion 2.33.9000
 # Pre-release tarballs are pulled in from git using a command that is
 # effectively:
@@ -111,7 +111,7 @@
 Summary: The GNU libc libraries
 Name: glibc
 Version: %{glibcversion}
-Release: 49%{?dist}
+Release: 50%{?dist}
 
 # In general, GPLv2+ is used by programs, LGPLv2+ is used for
 # libraries.
@@ -2242,6 +2242,13 @@ fi
 %files -f compat-libpthread-nonshared.filelist -n compat-libpthread-nonshared
 
 %changelog
+* Sat Jul 24 2021 Florian Weimer <fweimer@redhat.com> - 2.33.9000-50
+- Auto-sync with upstream branch master,
+  commit d34ed66f96fa9316654d7adb2afcce4be1d1c4f5:
+- manual: Document unsupported cases for interposition
+- x86: Install <bits/platform/x86.h> [BZ #27958]
+- Fix build and tests with --disable-tunables
+
 * Sat Jul 24 2021 Florian Weimer <fweimer@redhat.com> - 2.33.9000-49
 - Remove both old and new library names in glibc-hwcaps removal (#1983677)
 
diff --git a/sources b/sources
index a07b3f7..7e6ef9c 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (glibc-2.33.9000-979-g9a7ab0769b.tar.xz) = 97b1abcb3d64a0b34a2ccd7d2984b466df96579824cf1847d1183ae56ccde13334dcc99d65ab08860a17754bd8e682c1bb356be3c338eb3c4ddb2f1813847372
+SHA512 (glibc-2.33.9000-982-gd34ed66f96.tar.xz) = 9c6b0e4ffc7d389f8df9a18c8f27c622fa9f55ccc7b09598ea809bbb95653f22f9c32435f5e912f77bb6173c45a5bd401197e3524b78ca247715f73b40a463d0