diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9e8c4fa..95c73b6 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -25,7 +25,6 @@ jobs:
           # 只发头，不发 .so —— 消费者把实现体编进自己的 TU。
           mkdir -p "$d/include"
           cp -R include/. "$d/include/"
-          find build -maxdepth 3 \( -name 'lib*.so*' -o -name 'lib*.dylib' \) -exec cp -P {} "$d/lib/" \;
           # 本仓无可执行产物（纯库），故不带 bin/
           printf '{"abi":"%s"}\n' "$v" > "$d/abi-manifest.json"
           tar czf "$d.tar.gz" "$d"
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d9b213e..cc092f4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,7 +20,8 @@ target_compile_definitions(slotsboxmalloc PRIVATE
     $<$<CONFIG:Debug>:ENABLE_LOG>
 )
 
-target_link_libraries(slotsboxmalloc PUBLIC blockmalloc)
+# 依赖 blockmalloc 走 header-only（src/slotsboxmalloc.c 里 #define *_IMPLEMENTATION），
+# 故不链接它的 .so；头的搜索路径由系统 include 提供。
 
 add_subdirectory(tutorial)
 
diff --git a/ci/deps.sh b/ci/deps.sh
index bb0ec35..d71f8ff 100755
--- a/ci/deps.sh
+++ b/ci/deps.sh
@@ -8,7 +8,8 @@ for repo in $(jq -r 'keys[]' "$ROOT/deps.json"); do
   gh release download "$ver" -R "array2d/$repo" -p "${repo}-abi-*-linux-x86_64.tar.gz" -D "$tmp"
   tar xzf "$tmp"/*.tar.gz -C "$tmp" --strip-components=1
   if [ -d "$tmp/include" ]; then sudo cp -r "$tmp/include/"* /usr/include/; fi
-  sudo cp "$tmp/lib/"*.so* /usr/lib/
+  # 依赖（blockmalloc）是 header-only：只发头、无 lib
+  if [ -d "$tmp/lib" ]; then sudo cp "$tmp/lib/"*.so* /usr/lib/; fi
   rm -rf "$tmp"
 done
-echo "✅ ABI deps → /usr/lib + /usr/include"
+echo "✅ ABI deps → /usr/include（+ 有 lib 的仓装 /usr/lib）"
diff --git a/src/slotsboxmalloc.c b/src/slotsboxmalloc.c
index ec3dc7d..cedd333 100644
--- a/src/slotsboxmalloc.c
+++ b/src/slotsboxmalloc.c
@@ -1,2 +1,6 @@
+/* header-only：两个依赖的实现体都在本 TU 编译（不再链接 blockmalloc 的 .so）。
+ * blockmalloc 必须先于 slotsboxmalloc —— 后者实现体调用前者。 */
+#define BLOCKMALLOC_IMPLEMENTATION
+#include <blockmalloc/blockmalloc.h>
 #define SLOTSBOXMALLOC_IMPLEMENTATION
 #include "slotsboxmalloc/slotsboxobj.h"