diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 72e7c3e..95d7336 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -702,7 +702,7 @@
 
 component_test_small_mbedtls_ssl_dtls_max_buffering () {
     msg "build: small MBEDTLS_SSL_DTLS_MAX_BUFFERING #1"
-    scripts/config.pl set MBEDTLS_SSL_DTLS_MAX_BUFFERING 240
+    scripts/config.pl set MBEDTLS_SSL_DTLS_MAX_BUFFERING 190
     CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
     make