diff --git a/debian/patches/libcxx/libcxx-silent-failure-ppc64el.diff b/debian/patches/libcxx/libcxx-silent-failure-ppc64el.diff
index 6b774268..b4a71632 100644
--- a/debian/patches/libcxx/libcxx-silent-failure-ppc64el.diff
+++ b/debian/patches/libcxx/libcxx-silent-failure-ppc64el.diff
@@ -1,8 +1,8 @@
-Index: llvm-toolchain-snapshot_11~++20200606122450+1eda9bfd612/libcxx/test/libcxx/atomics/atomics.align/align.pass.pass.cpp
+Index: llvm-toolchain-snapshot_13~++20210621102918+342bbb7832b6/libcxx/test/libcxx/atomics/atomics.align/align.pass.cpp
 ===================================================================
---- llvm-toolchain-snapshot_11~++20200606122450+1eda9bfd612.orig/libcxx/test/libcxx/atomics/atomics.align/align.pass.pass.cpp
-+++ llvm-toolchain-snapshot_11~++20200606122450+1eda9bfd612/libcxx/test/libcxx/atomics/atomics.align/align.pass.pass.cpp
-@@ -11,7 +11,7 @@
+--- llvm-toolchain-snapshot_13~++20210621102918+342bbb7832b6.orig/libcxx/test/libcxx/atomics/atomics.align/align.pass.cpp
++++ llvm-toolchain-snapshot_13~++20210621102918+342bbb7832b6/libcxx/test/libcxx/atomics/atomics.align/align.pass.cpp
+@@ -18,7 +18,7 @@
  
  // GCC currently fails because it needs -fabi-version=6 to fix mangling of
  // std::atomic when used with __attribute__((vector(X))).