diff --git a/embed/bcw2/bcw2.wasm b/embed/bcw2/bcw2.wasm
index d770eda..837fa85 100755
Binary files a/embed/bcw2/bcw2.wasm and b/embed/bcw2/bcw2.wasm differ
diff --git a/embed/bcw2/build.sh b/embed/bcw2/build.sh
index 83fc712..16b7808 100755
--- a/embed/bcw2/build.sh
+++ b/embed/bcw2/build.sh
@@ -13,8 +13,8 @@ mkdir -p build/ext/
 cp "$ROOT"/sqlite3/*.[ch] build/
 cp "$ROOT"/sqlite3/*.patch build/
 
-# https://sqlite.org/src/info/4196efe83c2fa850
-curl -# https://sqlite.org/src/tarball/sqlite.tar.gz?r=4196efe8 | tar xz
+# https://sqlite.org/src/info/3215186aa9204149
+curl -# https://sqlite.org/src/tarball/sqlite.tar.gz?r=3215186a | tar xz
 
 cd sqlite
 if [[ "$OSTYPE" == "msys" || "$OSTYPE" == "cygwin" ]]; then
diff --git a/embed/sqlite3.wasm b/embed/sqlite3.wasm
index 7be8de5..88ebe99 100755
Binary files a/embed/sqlite3.wasm and b/embed/sqlite3.wasm differ
diff --git a/sqlite3/libc/string.h b/sqlite3/libc/string.h
index fba3421..678d8f6 100644
--- a/sqlite3/libc/string.h
+++ b/sqlite3/libc/string.h
@@ -50,7 +50,7 @@ void *memmove(void *dest, const void *src, size_t n) {
 __attribute__((weak))
 int memcmp(const void *v1, const void *v2, size_t n) {
   // memcmp can read up to n bytes from each object.
-  // Using unaligned loads to handle the case where
+  // Use unaligned loads to handle the case where
   // the objects have mismatching alignments.
   const v128_t *w1 = v1;
   const v128_t *w2 = v2;
@@ -151,7 +151,7 @@ static int __strcmp(const char *s1, const char *s2) {
   const v128_t *const limit =
       (v128_t *)(__builtin_wasm_memory_size(0) * PAGESIZE) - 1;
 
-  // Using unaligned loads to handle the case where
+  // Use unaligned loads to handle the case where
   // the strings have mismatching alignments.
   const v128_t *w1 = (void *)s1;
   const v128_t *w2 = (void *)s2;
@@ -199,7 +199,7 @@ int strncmp(const char *s1, const char *s2, size_t n) {
   const v128_t *const limit =
       (v128_t *)(__builtin_wasm_memory_size(0) * PAGESIZE) - 1;
 
-  // Using unaligned loads to handle the case where
+  // Use unaligned loads to handle the case where
   // the strings have mismatching alignments.
   const v128_t *w1 = (void *)s1;
   const v128_t *w2 = (void *)s2;
@@ -304,7 +304,7 @@ size_t strspn(const char *s, const char *c) {
     return s - a;
   }
 
-#if defined(__OPTIMIZE_SIZE__) || !defined(__OPTIMIZE__)
+#if !__OPTIMIZE__ || __OPTIMIZE_SIZE__
 
   // Unoptimized version.
   memset(byteset, 0, sizeof(byteset));
@@ -339,7 +339,7 @@ size_t strcspn(const char *s, const char *c) {
 
   if (!c[0] || !c[1]) return __strchrnul(s, *c) - s;
 
-#if defined(__OPTIMIZE_SIZE__) || !defined(__OPTIMIZE__)
+#if !__OPTIMIZE__ || __OPTIMIZE_SIZE__
 
   // Unoptimized version.
   memset(byteset, 0, sizeof(byteset));
diff --git a/vfs/tests/mptest/wasm/mptest.wasm b/vfs/tests/mptest/wasm/mptest.wasm
index 95942c0..1655131 100644
Binary files a/vfs/tests/mptest/wasm/mptest.wasm and b/vfs/tests/mptest/wasm/mptest.wasm differ
diff --git a/vfs/tests/speedtest1/wasm/speedtest1.wasm b/vfs/tests/speedtest1/wasm/speedtest1.wasm
index 9d42a9e..299df6f 100644
Binary files a/vfs/tests/speedtest1/wasm/speedtest1.wasm and b/vfs/tests/speedtest1/wasm/speedtest1.wasm differ