diff --git a/glibc.spec b/glibc.spec
index 4d79ea7..1c1facc 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -1,4 +1,4 @@
-%define glibcsrcdir glibc-2.33.9000-950-gee5ed99922
+%define glibcsrcdir glibc-2.33.9000-961-g77ede5f010
 %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: 45%{?dist}
+Release: 46%{?dist}
 
 # In general, GPLv2+ is used by programs, LGPLv2+ is used for
 # libraries.
@@ -2241,6 +2241,21 @@ fi
 %files -f compat-libpthread-nonshared.filelist -n compat-libpthread-nonshared
 
 %changelog
+* Wed Jul 21 2021 Florian Weimer <fweimer@redhat.com> - 2.33.9000-46
+- Auto-sync with upstream branch master,
+  commit 77ede5f010f1b144e067ec035e422a13bb57c55d:
+- socket: Add time64 alias for sendmsg
+- socket: Add time64 alias for recvmsg
+- socket: Add time64 alias for sendmmsg
+- Linux: Add time64 alias for prctl
+- io: Add time64 alias for fcntl
+- misc: Add time64 alias for ioctl
+- RISC-V: Update rv64 ULPs
+- resolv: Do not install libnss_dns.a, libnss_dns.so
+- hurd: Add support for spawn_do_closefrom
+- elf: Fix tst-cpu-features-cpuinfo on some AMD systems (BZ #28090)
+- i386: Add the clone3 wrapper
+
 * Mon Jul 19 2021 Florian Weimer <fweimer@redhat.com> - 2.33.9000-45
 - Remove glibc-hwcaps multilibs on upgrade (#1983677)
 
diff --git a/sources b/sources
index 6dc7354..43c35af 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (glibc-2.33.9000-950-gee5ed99922.tar.xz) = 54d74a1fcd49c0414cb08c2b10788dbd0fd93a1fa63b1b5d1d5a479f4ccd11ee42feeb39b73c0e3c7e978692201be8234e39b164d5e9be367420a5a98cf13ef1
+SHA512 (glibc-2.33.9000-961-g77ede5f010.tar.xz) = 34abd3ec969f76b6d98122cd78d650a1b9b5da9f0a96b7392a07b529c37487974852b469359b5f420ab9ad5876ef1e79877bd7a26e26d2e13e4006a109e65f93