diff --git a/deps/llhttp/README.md b/deps/llhttp/README.md
index f1998e923af4f9..c95e8d045843e0 100644
--- a/deps/llhttp/README.md
+++ b/deps/llhttp/README.md
@@ -22,7 +22,7 @@ were tried. However, all of them failed due to resulting significant performance
 degradation.
 
 This project is a port of [http_parser][0] to TypeScript. [llparse][1] is used
-to generate the output C and/or bitcode artifacts, which could be compiled and
+to generate the output C source file, which could be compiled and
 linked with the embedder's program (like [Node.js][7]).
 
 ## Performance
@@ -31,7 +31,7 @@ So far llhttp outperforms http_parser:
 
 |                 | input size |  bandwidth   |  reqs/sec  |   time  |
 |:----------------|-----------:|-------------:|-----------:|--------:|
-| **llhttp** _(C)_ | 8192.00 mb | 1777.24 mb/s | 3583799.39 ops/sec | 4.61 s |
+| **llhttp**      | 8192.00 mb | 1777.24 mb/s | 3583799.39 ops/sec | 4.61 s |
 | **http_parser** | 8192.00 mb | 694.66 mb/s | 1406180.33 req/sec | 11.79 s |
 
 llhttp is faster by approximately **156%**.
diff --git a/deps/llhttp/include/llhttp.h b/deps/llhttp/include/llhttp.h
index bfa290880580c1..4bf4d8b0cef85f 100644
--- a/deps/llhttp/include/llhttp.h
+++ b/deps/llhttp/include/llhttp.h
@@ -3,7 +3,7 @@
 
 #define LLHTTP_VERSION_MAJOR 2
 #define LLHTTP_VERSION_MINOR 1
-#define LLHTTP_VERSION_PATCH 2
+#define LLHTTP_VERSION_PATCH 3
 
 #ifndef LLHTTP_STRICT_MODE
 # define LLHTTP_STRICT_MODE 0
diff --git a/deps/llhttp/src/llhttp.c b/deps/llhttp/src/llhttp.c
index 372172122ac521..acc35479f88ca6 100644
--- a/deps/llhttp/src/llhttp.c
+++ b/deps/llhttp/src/llhttp.c
@@ -49,7 +49,7 @@ static const unsigned char llparse_blob7[] = {
 };
 #ifdef __SSE4_2__
 static const unsigned char ALIGN(16) llparse_blob8[] = {
-  0x9, 0x9, ' ', '~', 0x80, 0xfe, 0x0, 0x0, 0x0, 0x0, 0x0,
+  0x9, 0x9, ' ', '~', 0x80, 0xff, 0x0, 0x0, 0x0, 0x0, 0x0,
   0x0, 0x0, 0x0, 0x0, 0x0
 };
 #endif  /* __SSE4_2__ */
@@ -1595,7 +1595,7 @@ static llparse_state_t llhttp__internal__run(
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
-        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
       };
       if (p == endp) {
         return s_n_llhttp__internal__n_header_value_connection_token;
@@ -1916,7 +1916,7 @@ static llparse_state_t llhttp__internal__run(
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
-        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
       };
       if (p == endp) {
         return s_n_llhttp__internal__n_header_value;
@@ -1975,7 +1975,7 @@ static llparse_state_t llhttp__internal__run(
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
-        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
       };
       if (p == endp) {
         return s_n_llhttp__internal__n_header_value_te_token;
@@ -6863,7 +6863,7 @@ static const unsigned char llparse_blob7[] = {
 };
 #ifdef __SSE4_2__
 static const unsigned char ALIGN(16) llparse_blob8[] = {
-  0x9, 0x9, ' ', '~', 0x80, 0xfe, 0x0, 0x0, 0x0, 0x0, 0x0,
+  0x9, 0x9, ' ', '~', 0x80, 0xff, 0x0, 0x0, 0x0, 0x0, 0x0,
   0x0, 0x0, 0x0, 0x0, 0x0
 };
 #endif  /* __SSE4_2__ */
@@ -8358,7 +8358,7 @@ static llparse_state_t llhttp__internal__run(
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
-        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
       };
       if (p == endp) {
         return s_n_llhttp__internal__n_header_value_connection_token;
@@ -8679,7 +8679,7 @@ static llparse_state_t llhttp__internal__run(
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
-        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
       };
       if (p == endp) {
         return s_n_llhttp__internal__n_header_value;
@@ -8738,7 +8738,7 @@ static llparse_state_t llhttp__internal__run(
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
-        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
       };
       if (p == endp) {
         return s_n_llhttp__internal__n_header_value_te_token;