diff --git a/src/wasi/WASI.cpp b/src/wasi/WASI.cpp
index c154b29af..e097c0799 100644
--- a/src/wasi/WASI.cpp
+++ b/src/wasi/WASI.cpp
@@ -308,6 +308,24 @@ void WASI::fd_renumber(ExecutionState& state, Value* argv, Value* result, Instan
     result[0] = Value(uvwasi_fd_renumber(WASI::g_uvwasi, from, to));
 }
 
+void WASI::fd_filestat_set_times(ExecutionState& state, Value* argv, Value* result, Instance* instance)
+{
+    uint32_t fd = argv[0].asI32();
+    uint64_t st_atim = argv[1].asI64();
+    uint64_t st_mtim = argv[2].asI64();
+    uint32_t fst_flags = argv[3].asI32();
+
+    result[0] = Value(uvwasi_fd_filestat_set_times(WASI::g_uvwasi, fd, st_atim, st_mtim, fst_flags));
+}
+
+void WASI::sock_shutdown(ExecutionState& state, Value* argv, Value* result, Instance* instance)
+{
+    uint32_t sock = argv[0].asI32();
+    uint32_t how = argv[1].asI32();
+
+    result[0] = Value(uvwasi_sock_shutdown(WASI::g_uvwasi, sock, how));
+}
+
 void WASI::fd_fdstat_get(ExecutionState& state, Value* argv, Value* result, Instance* instance)
 {
     uint32_t fd = argv[0].asI32();
diff --git a/src/wasi/WASI.h b/src/wasi/WASI.h
index 14235ac38..bfd0ac0eb 100644
--- a/src/wasi/WASI.h
+++ b/src/wasi/WASI.h
@@ -52,6 +52,7 @@ class WASI {
     F(fd_datasync, I32_RI32)                               \
     F(fd_sync, I32_RI32)                                   \
     F(fd_renumber, I32I32_RI32)                            \
+    F(fd_filestat_set_times, I32I64I64I32_RI32)            \
     F(fd_fdstat_get, I32I32_RI32)                          \
     F(fd_fdstat_set_flags, I32I32_RI32)                    \
     F(fd_prestat_get, I32I32_RI32)                         \
@@ -70,7 +71,8 @@ class WASI {
     F(poll_oneoff, I32I32I32I32_RI32)                      \
     F(environ_get, I32I32_RI32)                            \
     F(environ_sizes_get, I32I32_RI32)                      \
-    F(sched_yield, RI32)
+    F(sched_yield, RI32)                                   \
+    F(sock_shutdown, I32I32_RI32)
 
 #define ERRORS(ERR)                                                   \
     ERR(success, "no error")                                          \
diff --git a/test/wasi/fd_filestat_set_times.wast b/test/wasi/fd_filestat_set_times.wast
new file mode 100644
index 000000000..3c988dc42
--- /dev/null
+++ b/test/wasi/fd_filestat_set_times.wast
@@ -0,0 +1,66 @@
+(module
+  (import "wasi_snapshot_preview1" "path_open"
+    (func $path_open (param i32 i32 i32 i32 i32 i64 i64 i32 i32) (result i32)))
+  (import "wasi_snapshot_preview1" "fd_filestat_set_times"
+    (func $fd_filestat_set_times (param i32 i64 i64 i32) (result i32)))
+  (import "wasi_snapshot_preview1" "fd_close"
+    (func $fd_close (param i32) (result i32)))
+
+  (memory 1)
+  (data (i32.const 300) "./write_to_this.txt")  ;; 19 bytes, file path
+
+  ;; Open file, call fd_filestat_set_times with ATIM_NOW|MTIM_NOW, close.
+  ;; Returns errno of fd_filestat_set_times.
+  (func (export "test_filestat_set_times") (result i32)
+    ;; --- path_open ---
+    i32.const 3
+    i32.const 1
+    i32.const 300
+    i32.const 19
+    i32.const 9         ;; oflags: creat|trunc
+    i64.const 8396864   ;; FD_WRITE(64) | PATH_OPEN(8192) | FD_FILESTAT_SET_TIMES(8388608)
+    i64.const 8396864
+    i32.const 0
+    i32.const 0         ;; store opened fd at memory[0]
+    call $path_open
+    i32.eqz
+    (if (then) (else i32.const 1 return))  ;; abort if open failed
+
+    ;; --- fd_filestat_set_times: test target ---
+    i32.const 0
+    i32.load            ;; fd
+    i64.const 0         ;; atim (ignored: ATIM_NOW is set)
+    i64.const 0         ;; mtim (ignored: MTIM_NOW is set)
+    i32.const 10        ;; fst_flags: ATIM_NOW(2) | MTIM_NOW(8) = 10
+    call $fd_filestat_set_times
+    ;; stash errno at memory[700] so we can close before returning
+    i32.const 700
+    i32.store
+
+    ;; --- fd_close ---
+    i32.const 0
+    i32.load
+    call $fd_close
+    drop
+
+    i32.const 700
+    i32.load            ;; return stashed errno
+  )
+
+  ;; Call fd_filestat_set_times with an invalid fd. Expects errno::badf (8).
+  (func (export "test_filestat_set_times_invalid_fd") (result i32)
+    i32.const 99        ;; non-existent fd
+    i64.const 0
+    i64.const 0
+    i32.const 0
+    call $fd_filestat_set_times
+  )
+
+  (export "memory" (memory 0))
+)
+
+;; Valid fd: fd_filestat_set_times should succeed (errno::success = 0)
+(assert_return (invoke "test_filestat_set_times") (i32.const 0))
+
+;; Invalid fd: should return errno::badf (8)
+(assert_return (invoke "test_filestat_set_times_invalid_fd") (i32.const 8))
diff --git a/test/wasi/sock_shutdown.wast b/test/wasi/sock_shutdown.wast
new file mode 100644
index 000000000..694fff59b
--- /dev/null
+++ b/test/wasi/sock_shutdown.wast
@@ -0,0 +1,30 @@
+(module
+  (import "wasi_snapshot_preview1" "sock_shutdown"
+    (func $sock_shutdown (param i32 i32) (result i32)))
+
+  (memory 1)
+
+  ;; Call sock_shutdown with an invalid fd and how=SHUT_WR(2).
+  ;; uvwasi proceeds to fd lookup -> fd not found -> errno::badf (8).
+  (func (export "test_sock_shutdown_invalid_fd") (result i32)
+    i32.const 99   ;; non-existent fd
+    i32.const 2    ;; how: SHUT_WR (the only supported flag)
+    call $sock_shutdown
+  )
+
+  ;; Call sock_shutdown with how=SHUT_RD(1).
+  ;; SHUT_RD is defined but not implemented in uvwasi: (how & ~SHUT_WR) fires -> errno::notsup (58).
+  (func (export "test_sock_shutdown_notsup") (result i32)
+    i32.const 0    ;; fd (irrelevant: flag check fires first)
+    i32.const 1    ;; how: SHUT_RD (defined but not implemented in uvwasi)
+    call $sock_shutdown
+  )
+
+  (export "memory" (memory 0))
+)
+
+;; Invalid fd with valid how: errno::badf (8)
+(assert_return (invoke "test_sock_shutdown_invalid_fd") (i32.const 8))
+
+;; Unsupported how flag (SHUT_RD): errno::notsup (58)
+(assert_return (invoke "test_sock_shutdown_notsup") (i32.const 58))