diff --git a/esphome/components/sx126x/sx126x.cpp b/esphome/components/sx126x/sx126x.cpp
index 53029ad8c0a..ee4e33ccae7 100644
--- a/esphome/components/sx126x/sx126x.cpp
+++ b/esphome/components/sx126x/sx126x.cpp
@@ -5,16 +5,16 @@
 namespace esphome::sx126x {
 
 ESPHOME_LOG_TAG(TAG, "sx126x");
-static const uint16_t RAMP[8] PROGMEM = {10, 20, 40, 80, 200, 800, 1700, 3400};
+static constexpr uint16_t RAMP[8] PROGMEM = {10, 20, 40, 80, 200, 800, 1700, 3400};
 // Aligned 32 bit loads from flash are safe on ESP8266, so this table is read directly
-static const uint32_t BW_HZ[31] PROGMEM = {4800,   5800,   7300,   9700,   11700,  14600,  19500,  23400,
-                                           29300,  39000,  46900,  58600,  78200,  93800,  117300, 156200,
-                                           187200, 234300, 312000, 373600, 467000, 7810,   10420,  15630,
-                                           20830,  31250,  41670,  62500,  125000, 250000, 500000};
-static const uint8_t BW_LORA[10] PROGMEM = {LORA_BW_7810,   LORA_BW_10420, LORA_BW_15630, LORA_BW_20830,
-                                            LORA_BW_31250,  LORA_BW_41670, LORA_BW_62500, LORA_BW_125000,
-                                            LORA_BW_250000, LORA_BW_500000};
-static const uint8_t BW_FSK[21] PROGMEM = {
+static constexpr uint32_t BW_HZ[31] PROGMEM = {4800,   5800,   7300,   9700,   11700,  14600,  19500,  23400,
+                                               29300,  39000,  46900,  58600,  78200,  93800,  117300, 156200,
+                                               187200, 234300, 312000, 373600, 467000, 7810,   10420,  15630,
+                                               20830,  31250,  41670,  62500,  125000, 250000, 500000};
+static constexpr uint8_t BW_LORA[10] PROGMEM = {LORA_BW_7810,   LORA_BW_10420, LORA_BW_15630, LORA_BW_20830,
+                                                LORA_BW_31250,  LORA_BW_41670, LORA_BW_62500, LORA_BW_125000,
+                                                LORA_BW_250000, LORA_BW_500000};
+static constexpr uint8_t BW_FSK[21] PROGMEM = {
     FSK_BW_4800,   FSK_BW_5800,   FSK_BW_7300,   FSK_BW_9700,   FSK_BW_11700,  FSK_BW_14600,  FSK_BW_19500,
     FSK_BW_23400,  FSK_BW_29300,  FSK_BW_39000,  FSK_BW_46900,  FSK_BW_58600,  FSK_BW_78200,  FSK_BW_93800,
     FSK_BW_117300, FSK_BW_156200, FSK_BW_187200, FSK_BW_234300, FSK_BW_312000, FSK_BW_373600, FSK_BW_467000};