diff --git a/boot/optee-os/Config.in b/boot/optee-os/Config.in
index 563f192b18..de0ed3168b 100644
--- a/boot/optee-os/Config.in
+++ b/boot/optee-os/Config.in
@@ -18,7 +18,7 @@ choice
 	  Select the version of OP-TEE OS you want to use
 
 config BR2_TARGET_OPTEE_OS_LATEST
-	bool "4.3.0"
+	bool "4.5.0"
 	depends on BR2_PACKAGE_HOST_RUSTC_ARCH_SUPPORTS
 	select BR2_TARGET_OPTEE_OS_NEEDS_PYTHON_CRYPTOGRAPHY
 	help
@@ -79,7 +79,7 @@ endif
 
 config BR2_TARGET_OPTEE_OS_VERSION
 	string
-	default "4.3.0"		if BR2_TARGET_OPTEE_OS_LATEST
+	default "4.5.0"		if BR2_TARGET_OPTEE_OS_LATEST
 	default BR2_TARGET_OPTEE_OS_CUSTOM_VERSION_VALUE \
 		if BR2_TARGET_OPTEE_OS_CUSTOM_VERSION
 	default "custom"	if BR2_TARGET_OPTEE_OS_CUSTOM_TARBALL
diff --git a/boot/optee-os/optee-os.hash b/boot/optee-os/optee-os.hash
index 16b3d7430e..685826d2f9 100644
--- a/boot/optee-os/optee-os.hash
+++ b/boot/optee-os/optee-os.hash
@@ -1,4 +1,3 @@
-# From https://github.com/OP-TEE/optee_os/archive/4.3.0/optee-os-4.3.0.tar.gz
-sha256  390b271905c828d6def9fa6a77bbaa425f3b434d733c8eb18f582ccbc6896096  optee-os-4.3.0.tar.gz
 # Locally computed
+sha256  43c389f0505e8bc21d6fbaa8ea83ec67d1746ed14a537e3f505cd0e5b4cc2db9  optee-os-4.5.0.tar.gz
 sha256  1247ee90858f4037b6cac63cbffddfed435d0d73c631b37d78c1e6e6ab3e5d1a  LICENSE