diff --git a/esphome/cpp_generator.py b/esphome/cpp_generator.py
index c1476aa728..e1f76a2cca 100644
--- a/esphome/cpp_generator.py
+++ b/esphome/cpp_generator.py
@@ -441,7 +441,7 @@ class ProgmemAssignmentExpression(AssignmentExpression):
         super().__init__(type_, "", name, rhs)
 
     def __str__(self):
-        return f"static const {self.type} {self.name}[] PROGMEM = {self.rhs}"
+        return f"static constexpr {self.type} {self.name}[] PROGMEM = {self.rhs}"
 
 
 class StaticConstAssignmentExpression(AssignmentExpression):
diff --git a/tests/unit_tests/test_cpp_generator.py b/tests/unit_tests/test_cpp_generator.py
index 8e24036cd0..bdc31cdef8 100644
--- a/tests/unit_tests/test_cpp_generator.py
+++ b/tests/unit_tests/test_cpp_generator.py
@@ -331,7 +331,7 @@ class TestStatements:
             ),
             (
                 cg.ProgmemAssignmentExpression(ct.uint16, "foo", "bar"),
-                'static const uint16_t foo[] PROGMEM = "bar"',
+                'static constexpr uint16_t foo[] PROGMEM = "bar"',
             ),
         ),
     )