diff --git a/bazel/external/wamr.BUILD b/bazel/external/wamr.BUILD
index 9ef6850e9..8c2955d57 100644
--- a/bazel/external/wamr.BUILD
+++ b/bazel/external/wamr.BUILD
@@ -20,7 +20,7 @@ cmake(
         "-GNinja",
     ] + select({
         "@proxy_wasm_cpp_host//bazel:engine_wamr_jit": [
-            "-DLLVM_DIR=$EXT_BUILD_DEPS/copy_llvm_13_0_1/llvm/lib/cmake/llvm",
+            "-DLLVM_DIR=$EXT_BUILD_DEPS/copy_llvm-15_0_7/llvm/lib/cmake/llvm",
             "-DWAMR_BUILD_AOT=1",
             "-DWAMR_BUILD_FAST_INTERP=0",
             "-DWAMR_BUILD_INTERP=0",
@@ -42,7 +42,7 @@ cmake(
     }),
     out_static_libs = ["libvmlib.a"],
     deps = select({
-        "@proxy_wasm_cpp_host//bazel:engine_wamr_jit": ["@llvm-13_0_1//:llvm_13_0_1_lib"],
+        "@proxy_wasm_cpp_host//bazel:engine_wamr_jit": ["@llvm-15_0_7//:llvm_wamr_lib"],
         "//conditions:default": [],
     }),
 )
diff --git a/bazel/external/wamr_llvm.BUILD b/bazel/external/wamr_llvm.BUILD
index 0efdbc9b6..789e5a442 100644
--- a/bazel/external/wamr_llvm.BUILD
+++ b/bazel/external/wamr_llvm.BUILD
@@ -10,7 +10,7 @@ filegroup(
 )
 
 cmake(
-    name = "llvm_13_0_1_lib",
+    name = "llvm_wamr_lib",
     cache_entries = {
         # Disable both: BUILD and INCLUDE, since some of the INCLUDE
         # targets build code instead of only generating build files.
@@ -20,20 +20,16 @@ cmake(
         "LLVM_INCLUDE_DOCS": "off",
         "LLVM_BUILD_EXAMPLES": "off",
         "LLVM_INCLUDE_EXAMPLES": "off",
-        "LLVM_BUILD_RUNTIME": "off",
-        "LLVM_BUILD_RUNTIMES": "off",
-        "LLVM_INCLUDE_RUNTIMES": "off",
         "LLVM_BUILD_TESTS": "off",
         "LLVM_INCLUDE_TESTS": "off",
         "LLVM_BUILD_TOOLS": "off",
         "LLVM_INCLUDE_TOOLS": "off",
-        "LLVM_BUILD_UTILS": "off",
-        "LLVM_INCLUDE_UTILS": "off",
         "LLVM_ENABLE_IDE": "off",
         "LLVM_ENABLE_LIBEDIT": "off",
         "LLVM_ENABLE_LIBXML2": "off",
         "LLVM_ENABLE_TERMINFO": "off",
         "LLVM_ENABLE_ZLIB": "off",
+        "LLVM_ENABLE_ZSTD": "off",
         "LLVM_TARGETS_TO_BUILD": "X86",
         "CMAKE_CXX_FLAGS": "-Wno-unused-command-line-argument",
     },
@@ -133,4 +129,5 @@ cmake(
         "libLLVMSupport.a",
         "libLLVMDemangle.a",
     ],
+    working_directory = "llvm",
 )
diff --git a/bazel/repositories.bzl b/bazel/repositories.bzl
index 764e4a38b..a49f01aad 100644
--- a/bazel/repositories.bzl
+++ b/bazel/repositories.bzl
@@ -159,10 +159,10 @@ def proxy_wasm_cpp_host_repositories():
         http_archive,
         name = "com_github_bytecodealliance_wasm_micro_runtime",
         build_file = "@proxy_wasm_cpp_host//bazel/external:wamr.BUILD",
-        # WAMR-2022-12-16
-        sha256 = "976b928f420040a77e793051e4d742208adf157370b9ad0f5535e126adb31eb0",
-        strip_prefix = "wasm-micro-runtime-WAMR-1.1.2",
-        url = "https://github.com/bytecodealliance/wasm-micro-runtime/archive/WAMR-1.1.2.tar.gz",
+        # WAMR-1.2.1
+        sha256 = "7548d4bbea8dbb9b005e83bd571f93a12fb3f0b5e87a8b0130f004dd92df4b0b",
+        strip_prefix = "wasm-micro-runtime-WAMR-1.2.1",
+        url = "https://github.com/bytecodealliance/wasm-micro-runtime/archive/refs/tags/WAMR-1.2.1.zip",
     )
 
     native.bind(
@@ -172,11 +172,11 @@ def proxy_wasm_cpp_host_repositories():
 
     maybe(
         http_archive,
-        name = "llvm-13_0_1",
+        name = "llvm-15_0_7",
         build_file = "@proxy_wasm_cpp_host//bazel/external:wamr_llvm.BUILD",
-        sha256 = "ec6b80d82c384acad2dc192903a6cf2cdbaffb889b84bfb98da9d71e630fc834",
-        strip_prefix = "llvm-13.0.1.src",
-        url = "https://github.com/llvm/llvm-project/releases/download/llvmorg-13.0.1/llvm-13.0.1.src.tar.xz",
+        sha256 = "8b5fcb24b4128cf04df1b0b9410ce8b1a729cb3c544e6da885d234280dedeac6",
+        strip_prefix = "llvm-project-15.0.7.src",
+        url = "https://github.com/llvm/llvm-project/releases/download/llvmorg-15.0.7/llvm-project-15.0.7.src.tar.xz",
     )
 
     # WasmEdge with dependencies.
diff --git a/src/wamr/wamr.cc b/src/wamr/wamr.cc
index e894df8f6..ea3d140e7 100644
--- a/src/wamr/wamr.cc
+++ b/src/wamr/wamr.cc
@@ -261,9 +261,15 @@ bool Wamr::link(std::string_view /*debug_name*/) {
     const wasm_name_t *name_ptr = wasm_importtype_name(import_types.get()->data[i]);
     const wasm_externtype_t *extern_type = wasm_importtype_type(import_types.get()->data[i]);
 
-    std::string_view module_name(module_name_ptr->data, module_name_ptr->size);
-    std::string_view name(name_ptr->data, name_ptr->size);
-    assert(name_ptr->size > 0);
+    if (std::strlen(name_ptr->data) == 0) {
+      fail(FailState::UnableToInitializeCode, std::string("The name field of import_types[") +
+                                                  std::to_string(i) + std::string("] is empty"));
+      return false;
+    }
+
+    std::string_view module_name(module_name_ptr->data);
+    std::string_view name(name_ptr->data);
+
     switch (wasm_externtype_kind(extern_type)) {
     case WASM_EXTERN_FUNC: {
       auto it = host_functions_.find(std::string(module_name) + "." + std::string(name));
@@ -354,8 +360,7 @@ bool Wamr::link(std::string_view /*debug_name*/) {
     case WASM_EXTERN_FUNC: {
       WasmFuncPtr func = wasm_func_copy(wasm_extern_as_func(actual_extern));
       const wasm_name_t *name_ptr = wasm_exporttype_name(export_types.get()->data[i]);
-      module_functions_.insert_or_assign(std::string(name_ptr->data, name_ptr->size),
-                                         std::move(func));
+      module_functions_.insert_or_assign(std::string(name_ptr->data), std::move(func));
     } break;
     case WASM_EXTERN_GLOBAL: {
       // TODO(mathetake): add support when/if needed.