diff --git a/src/platform/silabs/efr32/psa_crypto_config.h b/src/platform/silabs/efr32/psa_crypto_config.h
index 165a7b94967e74..450f9233cb9c4b 100644
--- a/src/platform/silabs/efr32/psa_crypto_config.h
+++ b/src/platform/silabs/efr32/psa_crypto_config.h
@@ -121,3 +121,8 @@
 #endif
 
 #endif // TFM_CONFIG_SL_SECURE_LIBRARY
+
+/* Defaults in GSDK 4.3.0 */
+#define SL_PSA_ITS_SUPPORT_V1_DRIVER 0
+#define SL_PSA_ITS_SUPPORT_V2_DRIVER 0
+#define SL_PSA_ITS_SUPPORT_V3_DRIVER 1