diff --git a/src/lcd.cpp b/src/lcd.cpp
index e7de943..52c512e 100644
--- a/src/lcd.cpp
+++ b/src/lcd.cpp
@@ -32,7 +32,7 @@ constexpr int LCD_ENABLE_BIT = 0x04;
 LCD::LCD(i2c_inst_t *i2c, const uint gpio_sda, const uint gpio_scl,
          const uint8_t i2c_addr, uint8_t num_cols, uint8_t num_lines)
     : i2c{i2c}, i2c_addr{i2c_addr}, num_cols{num_cols}, num_lines{num_lines} {
-    i2c_init(i2c, 100 * 1000);
+    i2c_init(i2c, 400 * 1000);
     gpio_set_function(gpio_sda, GPIO_FUNC_I2C);
     gpio_set_function(gpio_scl, GPIO_FUNC_I2C);
     gpio_pull_up(gpio_sda);