diff --git a/CMakeLists.txt b/CMakeLists.txt
index e7926b5..318ffd1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -222,6 +222,10 @@ endif()
 # Build libraries
 #
 
+if (MSVC)
+    add_compile_definitions(_CRT_SECURE_NO_WARNINGS)
+endif()
+
 add_subdirectory(ggml)
 
 if (BUILD_SHARED_LIBS)
diff --git a/ggml b/ggml
index bcf387f..4856b5d 160000
--- a/ggml
+++ b/ggml
@@ -1 +1 @@
-Subproject commit bcf387f6049fc0a7823746b933c0a42fad7d383a
+Subproject commit 4856b5d30a8985cde31efe4a5bfcc77ac1df61a6
diff --git a/rwkv.cpp b/rwkv.cpp
index 47fefed..f21e9cb 100644
--- a/rwkv.cpp
+++ b/rwkv.cpp
@@ -126,13 +126,13 @@ void rwkv_exp_impl(const int n_cols, float * dest, const float * src) {
 
 void rwkv_1_minus_x_impl(const int n_cols, float * dest, const float * src) {
     for (int i = 0; i < n_cols; i++) {
-        dest[i] = 1.0 - src[i];
+        dest[i] = 1.0F - src[i];
     }
 }
 
 void rwkv_sigmoid_impl(const int n_cols, float * dest, const float * src) {
     for (int i = 0; i < n_cols; i++) {
-        dest[i] = 1.0 / (1.0F + expf(-src[i]));
+        dest[i] = 1.0F / (1.0F + expf(-src[i]));
     }
 }
 
@@ -342,8 +342,8 @@ struct rwkv_context * rwkv_init_from_file(const char * file_path, uint32_t n_thr
     // Verify order of dimensions
     struct ggml_tensor * emb = model->emb;
     RWKV_ASSERT_NULL(emb->n_dims == 2, "Unexpected dimension count of embedding matrix %d", emb->n_dims);
-    RWKV_ASSERT_NULL(emb->ne[0] == model->n_embed, "Unexpected dimension of embedding matrix %d", emb->ne[0]);
-    RWKV_ASSERT_NULL(emb->ne[1] == model->n_vocab, "Unexpected dimension of embedding matrix %d", emb->ne[1]);
+    RWKV_ASSERT_NULL(emb->ne[0] == model->n_embed, "Unexpected dimension of embedding matrix %lld", emb->ne[0]);
+    RWKV_ASSERT_NULL(emb->ne[1] == model->n_vocab, "Unexpected dimension of embedding matrix %lld", emb->ne[1]);
 
     int32_t n_embed = model->n_embed;
     int32_t n_layer = model->n_layer;
@@ -789,7 +789,7 @@ bool rwkv_quantize_model_file(const char * model_file_path_in, const char * mode
 
         printf("original size     = %8.2f MB\n", total_size_orig / 1024.0 / 1024.0);
         printf("quantized size    = %8.2f MB\n", total_size_new / 1024.0 / 1024.0);
-        printf("compression ratio = %8.2f%\n", 1.0 * total_size_orig / total_size_new);
+        printf("compression ratio = %8.2f%%\n", 1.0 * total_size_orig / total_size_new);
 
         {
             int64_t sum_all = 0;