diff --git a/tests/components/m5stack_4relay/test.esp32-ard.yaml b/tests/components/m5stack_4relay/test.esp32-ard.yaml
index 6c2623123e..a9de1c622f 100644
--- a/tests/components/m5stack_4relay/test.esp32-ard.yaml
+++ b/tests/components/m5stack_4relay/test.esp32-ard.yaml
@@ -1,5 +1,5 @@
 substitutions:
-  scl_pin: 16
-  sda_pin: 17
+  scl_pin: "16"
+  sda_pin: "17"
 
 <<: !include common.yaml
diff --git a/tests/components/m5stack_4relay/test.esp32-c3-ard.yaml b/tests/components/m5stack_4relay/test.esp32-c3-ard.yaml
index b7c4a7c87b..738a01ddbc 100644
--- a/tests/components/m5stack_4relay/test.esp32-c3-ard.yaml
+++ b/tests/components/m5stack_4relay/test.esp32-c3-ard.yaml
@@ -1,5 +1,5 @@
 substitutions:
-  scl_pin: 5
-  sda_pin: 4
+  scl_pin: "5"
+  sda_pin: "4"
 
 <<: !include common.yaml
diff --git a/tests/components/m5stack_4relay/test.esp32-c3-idf.yaml b/tests/components/m5stack_4relay/test.esp32-c3-idf.yaml
index b7c4a7c87b..738a01ddbc 100644
--- a/tests/components/m5stack_4relay/test.esp32-c3-idf.yaml
+++ b/tests/components/m5stack_4relay/test.esp32-c3-idf.yaml
@@ -1,5 +1,5 @@
 substitutions:
-  scl_pin: 5
-  sda_pin: 4
+  scl_pin: "5"
+  sda_pin: "4"
 
 <<: !include common.yaml
diff --git a/tests/components/m5stack_4relay/test.esp32-idf.yaml b/tests/components/m5stack_4relay/test.esp32-idf.yaml
index 6c2623123e..a9de1c622f 100644
--- a/tests/components/m5stack_4relay/test.esp32-idf.yaml
+++ b/tests/components/m5stack_4relay/test.esp32-idf.yaml
@@ -1,5 +1,5 @@
 substitutions:
-  scl_pin: 16
-  sda_pin: 17
+  scl_pin: "16"
+  sda_pin: "17"
 
 <<: !include common.yaml
diff --git a/tests/components/m5stack_4relay/test.esp8266-ard.yaml b/tests/components/m5stack_4relay/test.esp8266-ard.yaml
index b7c4a7c87b..738a01ddbc 100644
--- a/tests/components/m5stack_4relay/test.esp8266-ard.yaml
+++ b/tests/components/m5stack_4relay/test.esp8266-ard.yaml
@@ -1,5 +1,5 @@
 substitutions:
-  scl_pin: 5
-  sda_pin: 4
+  scl_pin: "5"
+  sda_pin: "4"
 
 <<: !include common.yaml
diff --git a/tests/components/m5stack_4relay/test.rp2040-ard.yaml b/tests/components/m5stack_4relay/test.rp2040-ard.yaml
index b7c4a7c87b..738a01ddbc 100644
--- a/tests/components/m5stack_4relay/test.rp2040-ard.yaml
+++ b/tests/components/m5stack_4relay/test.rp2040-ard.yaml
@@ -1,5 +1,5 @@
 substitutions:
-  scl_pin: 5
-  sda_pin: 4
+  scl_pin: "5"
+  sda_pin: "4"
 
 <<: !include common.yaml