diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index eb968774..5a15acd4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,8 @@ env:
   UPX_DEBUG_TEST_LIBC_QSORT: 1
   ZSTD_CLEVEL: 17
   # 2025-08-19
-  ZIG_DIST_VERSION: 0.15.1
+  #ZIG_DIST_VERSION: 0.15.1
+  ZIG_DIST_VERSION: zig-0.16.0-dev.600+12ed0ff1e
 
 jobs:
   job-rebuild-and-verify-stubs:
@@ -656,9 +657,9 @@ jobs:
           ZIG_DIST_VERSION=${ZIG_DIST_VERSION/#zig-/}
           ZIG_DIST_NAME=zig-linux-x86_64-${ZIG_DIST_VERSION}
           ZIG_DIST_NAME=zig-x86_64-linux-${ZIG_DIST_VERSION}
-          #curl -sS -L -O https://ziglang.org/builds/${ZIG_DIST_NAME}.tar.xz
+          curl -sS -L -O https://ziglang.org/builds/${ZIG_DIST_NAME}.tar.xz
           #curl -sS -L -O https://ziglang.org/download/0.14.1/${ZIG_DIST_NAME}.tar.xz
-          curl -sS -L -O https://ziglang.org/download/0.15.1/${ZIG_DIST_NAME}.tar.xz
+          #curl -sS -L -O https://ziglang.org/download/0.15.1/${ZIG_DIST_NAME}.tar.xz
           ls -l ${ZIG_DIST_NAME}.tar.xz
           file ${ZIG_DIST_NAME}.tar.xz || true
           tar -xoJf ${ZIG_DIST_NAME}.tar.xz
diff --git a/misc/patches/zig/0001-x.patch b/misc/patches/zig/0001-x.patch
index 56f7da8c..f98dd31f 100644
--- a/misc/patches/zig/0001-x.patch
+++ b/misc/patches/zig/0001-x.patch
@@ -11,12 +11,13 @@ diff --git a/lib/libcxx/include/__config b/lib/libcxx/include/__config
 index fec323f..a16d145 100644
 --- a/lib/libcxx/include/__config
 +++ b/lib/libcxx/include/__config
-@@ -637,9 +637,11 @@ typedef __char32_t char32_t;
+@@ -637,9 +637,12 @@ typedef __char32_t char32_t;
  #    define _DECLARE_C99_LDBL_MATH 1
  #  endif
  
 +#  if defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION)
 +#    define _LIBCPP_HAS_LIBRARY_ALIGNED_ALLOCATION 0
++#  elif defined(_LIBCPP_HAS_LIBRARY_ALIGNED_ALLOCATION)
  // If we are getting operator new from the MSVC CRT, then allocation overloads
  // for align_val_t were added in 19.12, aka VS 2017 version 15.3.
 -#  if defined(_LIBCPP_MSVCRT) && defined(_MSC_VER) && _MSC_VER < 1912