diff --git a/backport-fix-memory-handling-in-slot-refresh.patch b/backport-fix-memory-handling-in-slot-refresh.patch
deleted file mode 100644
index 4f640587c71a0807cf76c86b7662a50c4671a3e9..0000000000000000000000000000000000000000
--- a/backport-fix-memory-handling-in-slot-refresh.patch
+++ /dev/null
@@ -1,94 +0,0 @@
-From 6c96847f1f52a5ccc76e8f8d14820cc4d6af1ecb Mon Sep 17 00:00:00 2001
-From: Pavol Marko <pmarko@google.com>
-Date: Fri, 16 Jun 2023 21:04:22 +0000
-Subject: [PATCH] Fix memory handling in slot refresh
-
-On refreshing slots, there were two issues:
-- When reusing a PKCS11_SLOT_PRIVATE structure instance, the instance to
-  be reused was accidentally freed
-- Looking for an instance in the list of slots had bugs in pointer
-  usage.
----
- src/libp11-int.h |  5 +++--
- src/p11_slot.c   | 23 ++++++++++++++++-------
- 2 files changed, 19 insertions(+), 9 deletions(-)
-
-diff --git a/src/libp11-int.h b/src/libp11-int.h
-index 2d4c48a..fec334c 100644
---- a/src/libp11-int.h
-+++ b/src/libp11-int.h
-@@ -216,8 +216,9 @@ extern unsigned long pkcs11_get_slotid_from_slot(PKCS11_SLOT_private *);
- /* Increment slot reference count */
- extern PKCS11_SLOT_private *pkcs11_slot_ref(PKCS11_SLOT_private *slot);
- 
--/* Decrement slot reference count, free if it becomes zero */
--extern void pkcs11_slot_unref(PKCS11_SLOT_private *slot);
-+/* Decrement slot reference count, free if it becomes zero.
-+ * Returns 1 if it was freed. */
-+extern int pkcs11_slot_unref(PKCS11_SLOT_private *slot);
- 
- /* Free the list of slots allocated by PKCS11_enumerate_slots() */
- extern void pkcs11_release_all_slots(PKCS11_SLOT *slots, unsigned int nslots);
-diff --git a/src/p11_slot.c b/src/p11_slot.c
-index 3c00e22..c2e45b5 100644
---- a/src/p11_slot.c
-+++ b/src/p11_slot.c
-@@ -76,9 +76,14 @@ int pkcs11_enumerate_slots(PKCS11_CTX_private *ctx, PKCS11_SLOT **slotp,
- 	for (n = 0; n < nslots; n++) {
- 		PKCS11_SLOT_private *slot = NULL;
- 		for (i = 0; i < *countp; i++) {
--			if (PRIVSLOT(slotp[i])->id != slotid[n])
-+			PKCS11_SLOT_private *slot_old_private =
-+				PRIVSLOT(&((*slotp)[i]));
-+			if (slot_old_private->id != slotid[n])
- 				continue;
--			slot = pkcs11_slot_ref(PRIVSLOT(slotp[i]));
-+			/* Increase ref count so it doesn't get freed when ref
-+			* count is decremented in pkcs11_release_all_slots
-+			* at the end of this function. */
-+			slot = pkcs11_slot_ref(slot_old_private);
- 			break;
- 		}
- 		if (!slot)
-@@ -420,10 +425,10 @@ PKCS11_SLOT_private *pkcs11_slot_ref(PKCS11_SLOT_private *slot)
- 	return slot;
- }
- 
--void pkcs11_slot_unref(PKCS11_SLOT_private *slot)
-+int pkcs11_slot_unref(PKCS11_SLOT_private *slot)
- {
- 	if (pkcs11_atomic_add(&slot->refcnt, -1, &slot->lock) != 0)
--		return;
-+		return 0;
- 
- 	pkcs11_wipe_cache(slot);
- 	if (slot->prev_pin) {
-@@ -434,6 +439,8 @@ void pkcs11_slot_unref(PKCS11_SLOT_private *slot)
- 	OPENSSL_free(slot->session_pool);
- 	pthread_mutex_destroy(&slot->lock);
- 	pthread_cond_destroy(&slot->cond);
-+
-+	return 1;
- }
- 
- static int pkcs11_init_slot(PKCS11_CTX_private *ctx, PKCS11_SLOT *slot, PKCS11_SLOT_private *spriv)
-@@ -473,11 +480,13 @@ static void pkcs11_release_slot(PKCS11_SLOT *slot)
- 		pkcs11_destroy_token(slot->token);
- 		OPENSSL_free(slot->token);
- 	}
--	if (spriv)
--		pkcs11_slot_unref(spriv);
-+	if (spriv) {
-+		if (pkcs11_slot_unref(spriv) != 0) {
-+			OPENSSL_free(slot->_private);
-+		}
-+	}
- 	OPENSSL_free(slot->description);
- 	OPENSSL_free(slot->manufacturer);
--	OPENSSL_free(slot->_private);
- 
- 	memset(slot, 0, sizeof(*slot));
- }
--- 
-2.43.0
-
diff --git a/libp11-0.4.12.tar.gz b/libp11-0.4.12.tar.gz
deleted file mode 100644
index 10d321747a23a1ecfbc8fc6eac77ced628592e97..0000000000000000000000000000000000000000
Binary files a/libp11-0.4.12.tar.gz and /dev/null differ
diff --git a/libp11-0.4.16.tar.gz b/libp11-0.4.16.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..879ac6b44174ddc7d95ea7f1acf48207a8861d5b
Binary files /dev/null and b/libp11-0.4.16.tar.gz differ
diff --git a/openssl-pkcs11.spec b/openssl-pkcs11.spec
index 1d90b5effbc4f66a066cd451b1cde1707276b3e1..e589fa729e6a6ad3ea5704b0554984088d591d4a 100644
--- a/openssl-pkcs11.spec
+++ b/openssl-pkcs11.spec
@@ -1,6 +1,6 @@
 Name:           openssl-pkcs11
-Version:        0.4.12
-Release:        4
+Version:        0.4.16
+Release:        1
 Summary:        A PKCS#11 engine for use with OpenSSL
 License:        LGPLv2+ and BSD
 URL:            https://github.com/OpenSC/libp11
@@ -84,6 +84,9 @@ make check ||:
 %exclude %{_defaultdocdir}/libp11/*
 
 %changelog
+* Thu Oct 16 2025 jinlun <jinlun@h-partners.com> - 0.4.16-1
+- update openssl-pkcs11 to 0.4.16
+
 * Mon Jun 23 2025 Linux_zhang <zhangruifang@h-partners.com> - 0.4.12-4
 - fix bad date in changelog