diff --git a/package/libs/mbedtls/Makefile b/package/libs/mbedtls/Makefile
index 15ef843d91..c4b13929f0 100644
--- a/package/libs/mbedtls/Makefile
+++ b/package/libs/mbedtls/Makefile
@@ -8,13 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mbedtls
-PKG_VERSION:=3.6.5
+PKG_VERSION:=3.6.6
 PKG_RELEASE:=1
 PKG_BUILD_FLAGS:=no-mips16 gc-sections no-lto
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL=https://github.com/Mbed-TLS/$(PKG_NAME)/releases/download/$(PKG_NAME)-$(PKG_VERSION)
-PKG_HASH:=4a11f1777bb95bf4ad96721cac945a26e04bf19f57d905f241fe77ebeddf46d8
+PKG_HASH:=8fb65fae8dcae5840f793c0a334860a411f884cc537ea290ce1c52bb64ca007a
 
 PKG_LICENSE:=GPL-2.0-or-later
 PKG_LICENSE_FILES:=LICENSE
diff --git a/package/libs/mbedtls/patches/100-fix-gcc14-build.patch b/package/libs/mbedtls/patches/100-fix-gcc14-build.patch
index 656e605814..78240ee9de 100644
--- a/package/libs/mbedtls/patches/100-fix-gcc14-build.patch
+++ b/package/libs/mbedtls/patches/100-fix-gcc14-build.patch
@@ -1,6 +1,6 @@
 --- a/library/common.h
 +++ b/library/common.h
-@@ -199,7 +199,7 @@ static inline void mbedtls_xor(unsigned
+@@ -224,7 +224,7 @@ static inline void mbedtls_xor(unsigned
          uint8x16_t x = veorq_u8(v1, v2);
          vst1q_u8(r + i, x);
      }