diff --git a/core/glibc/PKGBUILD b/core/glibc/PKGBUILD
index e6e005b2f..d3a392ab8 100644
--- a/core/glibc/PKGBUILD
+++ b/core/glibc/PKGBUILD
@@ -16,8 +16,8 @@ noautobuild=1
 
 pkgname=glibc
 pkgver=2.35
-_commit=28ea43f8d64f0dd1f2de75525157730e1532e600
-pkgrel=5.1
+_commit=d7d1eebd4d5806be55ffacbf18917ad68d4ae7fd
+pkgrel=6
 arch=(x86_64)
 url='https://www.gnu.org/software/libc'
 license=(GPL LGPL)
@@ -33,7 +33,7 @@ validpgpkeys=(7273542B39962DF7B299931416792B4EA25340F8 # Carlos O'Donell
               BC7C7372637EC10C57D7AA6579C43DFBF1CF2187) # Siddhesh Poyarekar
 b2sums=('SKIP'
         '46d533d25c7a2ce4ae75d452eee7ebb8e3ce4d191af9be3daa43718b78cb81d33cfd8046a117a15d87de9f5e940448c66005b0490515bf731c9e4691c53908d6'
-        '1f6d927b4972220b1c00abee5329c5d6bc01ed5bee57b20db0c7d7433292f7d666b02baf9968267f8e378b1f3bb273e8eef0ccbf22d21400ac36949d7615a474'
+        '04fbb3b0b28705f41ccc6c15ed5532faf0105370f22133a2b49867e790df0491f5a1255220ff6ebab91a462f088d0cf299491b3eb8ea53534cb8638a213e46e3'
         'a6a5e2f2a627cc0d13d11a82458cfd0aa75ec1c5a3c7647e5d5a3bb1d4c0770887a3909bfda1236803d5bc9801bfd6251e13483e9adf797e4725332cd0d91a0e'
         '214e995e84b342fe7b2a7704ce011b7c7fc74c2971f98eeb3b4e677b99c860addc0a7d91b8dc0f0b8be7537782ee331999e02ba48f4ccc1c331b60f27d715678'
         'edef5f724f68ea95c6b0127bd13a10245f548afc381b2d0a6d1d06ee9f87b7dd89c6becd35d5ae722bf838594eb870a747f67f07f46e7d63f8c8d1a43cce4a52')
@@ -97,6 +97,10 @@ build() {
 
   # build info pages manually for reproducibility
   make info
+
+  # pregenerate C.UTF-8 locale until it is built into glibc
+  # (https://sourceware.org/glibc/wiki/Proposals/C.UTF-8, FS#74864)
+  locale/localedef -c -f ../glibc/localedata/charmaps/UTF-8 -i ../glibc/localedata/locales/C ../C.UTF-8/
 }
 
 # Credits for skip_test() and check() @allanmcrae
@@ -164,6 +168,11 @@ package() {
   sed -e '1,3d' -e 's|/| |g' -e 's|\\| |g' -e 's|^|#|g' \
     "$srcdir/glibc/localedata/SUPPORTED" >> "$pkgdir/etc/locale.gen"
 
+  # install C.UTF-8 so that it is always available
+  install -dm755 "$pkgdir/usr/lib/locale"
+  cp -r "$srcdir/C.UTF-8" -t "$pkgdir/usr/lib/locale"
+  sed -i '/#C\.UTF-8 /d' "$pkgdir/etc/locale.gen"
+
   # Provide tracing probes to libstdc++ for exceptions, possibly for other
   # libraries too. Useful for gdb's catch command.
   install -Dm644 "$srcdir/sdt.h" "$pkgdir/usr/include/sys/sdt.h"
diff --git a/core/glibc/locale-gen b/core/glibc/locale-gen
index 5aff344c4..ee8888070 100755
--- a/core/glibc/locale-gen
+++ b/core/glibc/locale-gen
@@ -13,7 +13,7 @@ fi
 
 # Remove all old locale dir and locale-archive before generating new
 # locale data.
-rm -rf /usr/lib/locale/* || true
+rm -rf /usr/lib/locale/locale-archive || true
 
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