diff --git a/sdkconfig.defaults b/sdkconfig.defaults
index befdaa3..c2b7792 100644
--- a/sdkconfig.defaults
+++ b/sdkconfig.defaults
@@ -36,3 +36,6 @@ CONFIG_COMPILER_CXX_EXCEPTIONS=y
 # Tremor (bell): keep it out of the link. HLS only needs AAC.
 # CONFIG_AUDIO_DECODER_VORBIS_SUPPORT is not set
 # CONFIG_AUDIO_SIMPLE_DEC_OGG_SUPPORT is not set
+
+# TLS buffers/contexts in PSRAM (saves internal heap with Spotify/HLS sessions)
+CONFIG_MBEDTLS_EXTERNAL_MEM_ALLOC=y