diff --git a/mongoose.c b/mongoose.c
index 97049830..61afa2f7 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -3487,7 +3487,7 @@ struct mg_fs mg_fs_posix = {p_stat,  p_list, p_open,   p_close,  p_read,
 struct mg_health mg_health_record MG_HEALTH_RAM;
 
 // STM32 H723 support. Needs the _estack symbol from the linker script
-#if MG_ENABLE_HEALTH && defined(STM32H723xx_H)
+#if MG_ENABLE_HEALTH && (defined(STM32H7_DEV_ID) || defined(STM32H5))
 // Fault handler body. Runs in exception context: no printf, no malloc, no
 // blocking calls. Copies the unwind registers and raw stack into the health
 // record, then resets.
@@ -26581,11 +26581,12 @@ bool mg_random(void *buf, size_t len) {
   success = true;
 #elif MG_ARCH == MG_ARCH_CUBE && defined(HAL_RNG_MODULE_ENABLED)
   extern RNG_HandleTypeDef hrng;
+  success = true;
   for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
-    uint32_t r = HAL_RNG_ReadLastRandomNumber(&hrng);
+    uint32_t r = 0;
+    if (HAL_RNG_GenerateRandomNumber(&hrng, &r) != HAL_OK) success = false;
     memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
   }
-  success = true;
 #elif MG_ARCH == MG_ARCH_PICOSDK
   while (len--) *p++ = (unsigned char) (get_rand_32() & 255);
   success = true;
diff --git a/mongoose.h b/mongoose.h
index f98f5f52..8a784269 100644
--- a/mongoose.h
+++ b/mongoose.h
@@ -4927,6 +4927,10 @@ void mg_ota_poll(struct mg_mgr *);
 #define MG_HEALTH_MAGIC {'M', 'G', 'H', '3'}  // '3' is the layout version
 #endif
 
+#if !defined(MG_HEALTH_RAM) && (defined(STM32H7_DEV_ID) || defined(STM32H5))
+#define MG_HEALTH_RAM __attribute__((section(".mg_health")))
+#endif
+
 // Places the record in RAM that survives a reset. Define in mongoose_config.h
 // to match the linker script, e.g. __attribute__((section(".mg_health")))
 #ifndef MG_HEALTH_RAM
@@ -4948,7 +4952,7 @@ enum mg_health_reason {
 };
 
 #ifndef MG_HEALTH_DATA_SIZE
-#define MG_HEALTH_DATA_SIZE 20
+#define MG_HEALTH_DATA_SIZE 250
 #endif
 
 struct mg_health {
diff --git a/src/health.c b/src/health.c
index b4a2eebc..1c167976 100644
--- a/src/health.c
+++ b/src/health.c
@@ -6,7 +6,7 @@
 struct mg_health mg_health_record MG_HEALTH_RAM;
 
 // STM32 H723 support. Needs the _estack symbol from the linker script
-#if MG_ENABLE_HEALTH && defined(STM32H723xx_H)
+#if MG_ENABLE_HEALTH && (defined(STM32H7_DEV_ID) || defined(STM32H5))
 // Fault handler body. Runs in exception context: no printf, no malloc, no
 // blocking calls. Copies the unwind registers and raw stack into the health
 // record, then resets.
diff --git a/src/health.h b/src/health.h
index be662bdc..d438b0b2 100644
--- a/src/health.h
+++ b/src/health.h
@@ -9,6 +9,10 @@
 #define MG_HEALTH_MAGIC {'M', 'G', 'H', '3'}  // '3' is the layout version
 #endif
 
+#if !defined(MG_HEALTH_RAM) && (defined(STM32H7_DEV_ID) || defined(STM32H5))
+#define MG_HEALTH_RAM __attribute__((section(".mg_health")))
+#endif
+
 // Places the record in RAM that survives a reset. Define in mongoose_config.h
 // to match the linker script, e.g. __attribute__((section(".mg_health")))
 #ifndef MG_HEALTH_RAM
@@ -30,7 +34,7 @@ enum mg_health_reason {
 };
 
 #ifndef MG_HEALTH_DATA_SIZE
-#define MG_HEALTH_DATA_SIZE 20
+#define MG_HEALTH_DATA_SIZE 250
 #endif
 
 struct mg_health {
diff --git a/src/util.c b/src/util.c
index 7539f09f..24619fd2 100644
--- a/src/util.c
+++ b/src/util.c
@@ -43,11 +43,12 @@ bool mg_random(void *buf, size_t len) {
   success = true;
 #elif MG_ARCH == MG_ARCH_CUBE && defined(HAL_RNG_MODULE_ENABLED)
   extern RNG_HandleTypeDef hrng;
+  success = true;
   for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
-    uint32_t r = HAL_RNG_ReadLastRandomNumber(&hrng);
+    uint32_t r = 0;
+    if (HAL_RNG_GenerateRandomNumber(&hrng, &r) != HAL_OK) success = false;
     memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
   }
-  success = true;
 #elif MG_ARCH == MG_ARCH_PICOSDK
   while (len--) *p++ = (unsigned char) (get_rand_32() & 255);
   success = true;
diff --git a/tutorials/stm32/nucleo-h723zg/minimal/mongoose_config.h b/tutorials/stm32/nucleo-h723zg/minimal/mongoose_config.h
index 23b639c5..5f1f6a15 100644
--- a/tutorials/stm32/nucleo-h723zg/minimal/mongoose_config.h
+++ b/tutorials/stm32/nucleo-h723zg/minimal/mongoose_config.h
@@ -28,10 +28,8 @@
 
 // Crash report support. Health record lives in the .mg_health region, see link.ld
 #define MG_ENABLE_HEALTH 1
-#define MG_HEALTH_RAM __attribute__((section(".mg_health")))
-#define MG_HEALTH_DATA_SIZE 1000
 
 // mdash.net device management service support
 #define MG_ENABLE_MDASH 0
 #define MG_MDASH_KEY "..."  // Set this - mDash device token
-#define MG_FIRMWARE_VERSION "1.0.0"
+#define MG_FIRMWARE_VERSION "h723.1.0.0"