diff --git a/esphome/components/datetime/datetime_base.h b/esphome/components/datetime/datetime_base.h
index d94dfe9e8b..ba2b47f457 100644
--- a/esphome/components/datetime/datetime_base.h
+++ b/esphome/components/datetime/datetime_base.h
@@ -20,7 +20,7 @@ class DateTimeBase : public EntityBase {
 
   void add_on_state_callback(std::function<void()> &&callback) { this->state_callback_.add(std::move(callback)); }
 
-  virtual const char *get_component_type() const override = 0;
+  const char *get_component_type() const override = 0;
 
 #ifdef USE_TIME
   void set_rtc(time::RealTimeClock *rtc) { this->rtc_ = rtc; }
diff --git a/esphome/components/sensor/sensor.h b/esphome/components/sensor/sensor.h
index 574daa487a..e0376903ea 100644
--- a/esphome/components/sensor/sensor.h
+++ b/esphome/components/sensor/sensor.h
@@ -143,7 +143,7 @@ class Sensor : public EntityBase, public EntityBase_DeviceClass, public EntityBa
    *
    * @deprecated Do not use for new sensors, a suitable unique ID is automatically generated (2023.4).
    */
-  virtual std::string unique_id();
+  std::string unique_id() override;
 
   // Get the component type for this entity
   const char *get_component_type() const override;
diff --git a/esphome/components/text_sensor/text_sensor.h b/esphome/components/text_sensor/text_sensor.h
index 3bb1a5ea26..75b162b56d 100644
--- a/esphome/components/text_sensor/text_sensor.h
+++ b/esphome/components/text_sensor/text_sensor.h
@@ -65,7 +65,7 @@ class TextSensor : public EntityBase, public EntityBase_DeviceClass {
    *
    * @deprecated Do not use for new sensors, a suitable unique ID is automatically generated (2023.4).
    */
-  virtual std::string unique_id();
+  std::string unique_id() override;
 
   bool has_state();