diff --git a/srcpkgs/bctoolbox/patches/disable-psa-crypto.patch b/srcpkgs/bctoolbox/patches/disable-psa-crypto.patch
new file mode 100644
index 00000000000..995c8926d8c
--- /dev/null
+++ b/srcpkgs/bctoolbox/patches/disable-psa-crypto.patch
@@ -0,0 +1,22 @@
+From: Bastian Germann <bage@debian.org>
+Date: Fri, 13 Dec 2024 18:54:55 +0100
+Subject: Disable PSA crypto
+
+---
+ src/crypto/mbedtls.cc | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/crypto/mbedtls.cc b/src/crypto/mbedtls.cc
+index 4bc16d4..5b08c84 100644
+--- a/src/crypto/mbedtls.cc
++++ b/src/crypto/mbedtls.cc
+@@ -33,7 +33,7 @@
+ #include <mbedtls/hkdf.h>                // HKDF implemented in version 2.11.0 of mbedtls
+ #endif
+ 
+-#if MBEDTLS_VERSION_NUMBER >= 0x03060000 // v3.6.0
++#if 0
+                                          // starting from version 3.6, use PSA crypto
+ #include "bctoolbox/logging.h"
+ #include <mutex>
+
diff --git a/srcpkgs/bctoolbox/template b/srcpkgs/bctoolbox/template
index b55d02d1b17..6c37c50635d 100644
--- a/srcpkgs/bctoolbox/template
+++ b/srcpkgs/bctoolbox/template
@@ -1,7 +1,7 @@
 # Template file for 'bctoolbox'
 pkgname=bctoolbox
-version=5.3.79
-revision=2
+version=5.3.100
+revision=1
 build_style=cmake
 configure_args="-DENABLE_TESTS=ON -DENABLE_TESTS_COMPONENT=FALSE
  -DENABLE_STRICT=FALSE -DCMAKE_MODULE_PATH=/usr/lib/cmake
@@ -12,7 +12,7 @@ maintainer="John <me@johnnynator.dev>"
 license="GPL-2.0-only"
 homepage="https://gitlab.linphone.org/BC/public/bctoolbox"
 distfiles="https://gitlab.linphone.org/BC/public/bctoolbox/-/archive/${version}/bctoolbox-${version}.tar.gz"
-checksum=8293326971b5e7c3b0ef77e4f62653ecaf169af0c82d34acb1e26ff62c4e3801
+checksum=e2ade0baf465423475ae7a14463f74d6d61a7daab4700c8c140f2bb90d257ca8
 
 bctoolbox-devel_package() {
 	depends="bctoolbox-${version}_${revision}"