diff --git a/thirdparty/dropbear/CMakeLists.txt b/thirdparty/dropbear/CMakeLists.txt
index 4b0c9b18f..91dc15e46 100644
--- a/thirdparty/dropbear/CMakeLists.txt
+++ b/thirdparty/dropbear/CMakeLists.txt
@@ -67,8 +67,8 @@ list(APPEND BUILD_CMD COMMAND make strip PROGRAMS=dropbear)
 append_binary_install_command(INSTALL_CMD dropbear)
 
 external_project(
-    DOWNLOAD URL d4b107f6fd103bc2c6ed7226bbae69b2
-    https://github.com/mkj/dropbear/archive/refs/tags/DROPBEAR_2024.85.tar.gz
+    DOWNLOAD URL bb72335b40c90397cb1c182143524800
+    https://github.com/mkj/dropbear/archive/refs/tags/DROPBEAR_2024.86.tar.gz
     PATCH_FILES ${PATCH_FILES}
     CONFIGURE_COMMAND ${CFG_CMD}
     BUILD_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/localoptions.h
diff --git a/thirdparty/dropbear/localoptions.h.cmake b/thirdparty/dropbear/localoptions.h.cmake
index 0a2baa29d..232e14eeb 100644
--- a/thirdparty/dropbear/localoptions.h.cmake
+++ b/thirdparty/dropbear/localoptions.h.cmake
@@ -13,3 +13,5 @@
 #cmakedefine DSS_PRIV_FILENAME   "@DSS_PRIV_FILENAME@"
 #cmakedefine RSA_PRIV_FILENAME   "@RSA_PRIV_FILENAME@"
 #cmakedefine ECDSA_PRIV_FILENAME "@ECDSA_PRIV_FILENAME@"
+// Extra part of the SSH server identification string.
+#define IDENT_VERSION_PART "_" DROPBEAR_VERSION " (KOReader)"