diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7eb315db..b6840c4c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,17 +27,36 @@ jobs:
       - uses: actions/checkout@v4
       - run: npm ci
       - run: npm test
+      - name: Install clang for ASAN
+        run: sudo apt-get update && sudo apt-get install -y clang
       - name: Set up cargo cache
         uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6
       - run: cargo fmt --all -- --check
       - run: cargo clippy --all-targets --all-features -- -D warnings
-      - run: cargo test --features odbc-static
+      - name: Build proc-macros without ASAN first
+        run: cargo build --lib --features odbc-static
+      - name: Run tests with ASAN-instrumented C dependencies
+        env:
+          CFLAGS: "-fsanitize=address -fno-omit-frame-pointer -g"
+          CXXFLAGS: "-fsanitize=address -fno-omit-frame-pointer -g"
+          CC: clang
+          CXX: clang++
+          RUSTFLAGS: "-Clink-arg=-fsanitize=address"
+          ASAN_OPTIONS: "detect_leaks=1:abort_on_error=1"
+        run: |
+          # Find and preload ASAN runtime library so rustc can load ASAN-linked proc-macros
+          ASAN_LIB=$(clang -print-file-name=libclang_rt.asan-x86_64.so)
+          export LD_PRELOAD="$ASAN_LIB"
+          # Recompile C dependencies and binaries with ASAN instrumentation
+          cargo clean -p aws-lc-sys -p libsqlite3-sys -p zstd-sys -p sqlpage
+          cargo test --features odbc-static
       - name: Upload Linux binary
         uses: actions/upload-artifact@v4
         with:
           name: sqlpage-linux-debug
           path: "target/debug/sqlpage"
 
+
   test:
     runs-on: ubuntu-latest
     strategy:
diff --git a/ASAN-BUILD-PROCESS.md b/ASAN-BUILD-PROCESS.md
new file mode 100644
index 00000000..d1757f05
--- /dev/null
+++ b/ASAN-BUILD-PROCESS.md
@@ -0,0 +1,47 @@
+# Building with ASAN for C Dependencies
+
+## Two-Phase Build Approach
+
+The solution uses a two-phase build to avoid proc-macro loading issues:
+
+### Phase 1: Build proc-macros without ASAN
+```bash
+cargo build --lib --features odbc-static
+```
+
+This builds all libraries and proc-macros (like `sqlx-macros-oldapi`) with normal linking.
+
+### Phase 2: Rebuild with ASAN instrumentation
+```bash
+# Set up ASAN environment
+export CFLAGS="-fsanitize=address -fno-omit-frame-pointer -g"
+export CXXFLAGS="-fsanitize=address -fno-omit-frame-pointer -g"
+export CC=clang
+export CXX=clang++
+export RUSTFLAGS="-Clink-arg=-fsanitize=address"
+
+# Preload ASAN runtime so rustc can load proc-macros
+export LD_PRELOAD=$(clang -print-file-name=libclang_rt.asan-x86_64.so)
+
+# Rebuild only C dependencies and main binary
+cargo clean -p aws-lc-sys -p libsqlite3-sys -p zstd-sys -p sqlpage
+cargo test --features odbc-static
+```
+
+## Why This Works
+
+1. **Proc-macros** are built first without ASAN and cached
+2. **C dependencies** (aws-lc-sys, libsqlite3-sys, zstd-sys) are recompiled with ASAN instrumentation
+3. **LD_PRELOAD** loads the ASAN runtime library into the cargo/rustc process, allowing it to successfully load proc-macros even if they transitively depend on ASAN-instrumented code
+4. **Final binary and tests** are linked with ASAN runtime via `-Clink-arg=-fsanitize=address`
+
+## What Gets Detected
+
+With ASAN enabled for C dependencies, the tests will detect:
+- Buffer overflows in C code
+- Use-after-free errors in C code
+- Memory leaks in C code (via LeakSanitizer)
+- Stack buffer overflows
+- Global buffer overflows
+
+This provides comprehensive memory safety checking for the native C dependencies while working around Rust's proc-macro system limitations.
diff --git a/Cargo.lock b/Cargo.lock
index 3d36bc87..c76d820c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -610,6 +610,15 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
 
+[[package]]
+name = "autotools"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef941527c41b0fc0dd48511a8154cd5fc7e29200a0ff8b7203c5d777dbc795cf"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "awc"
 version = "3.8.1"
@@ -3073,8 +3082,9 @@ dependencies = [
 
 [[package]]
 name = "odbc-sys"
-version = "0.27.3"
-source = "git+https://github.com/sqlpage/odbc-sys?branch=no-autotools#ae3e15446bb2c5c191f05e7c6affc37dfd6fcabe"
+version = "0.27.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2127e7f596b99095fe8ebb03f9fd52e32fd01a28e66eac41c1e637f963d488e"
 dependencies = [
  "unix-odbc",
 ]
@@ -4806,9 +4816,11 @@ checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
 [[package]]
 name = "unix-odbc"
 version = "0.1.2"
-source = "git+https://github.com/sqlpage/odbc-sys?branch=no-autotools#ae3e15446bb2c5c191f05e7c6affc37dfd6fcabe"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fed7dc665cf7dfdb5b9c1fe9c8257f053be19ecad9966090acce5f574cb2eeff"
 dependencies = [
- "cc",
+ "autotools",
+ "fs_extra",
 ]
 
 [[package]]
@@ -5577,3 +5589,8 @@ dependencies = [
  "cc",
  "pkg-config",
 ]
+
+[[patch.unused]]
+name = "odbc-sys"
+version = "0.27.3"
+source = "git+https://github.com/sqlpage/odbc-sys?branch=no-autotools#ae3e15446bb2c5c191f05e7c6affc37dfd6fcabe"