diff --git a/examples/protocols/esp_http_client/main/howsmyssl_com_root_cert.pem b/examples/protocols/esp_http_client/main/howsmyssl_com_root_cert.pem
index 1d82449ab8..c7c077f91e 100644
--- a/examples/protocols/esp_http_client/main/howsmyssl_com_root_cert.pem
+++ b/examples/protocols/esp_http_client/main/howsmyssl_com_root_cert.pem
@@ -1,26 +1,31 @@
------BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/examples/protocols/http2_request/main/golang_root_cert.pem b/examples/protocols/http2_request/main/golang_root_cert.pem
index b2e43c9381..b85c8037f6 100644
--- a/examples/protocols/http2_request/main/golang_root_cert.pem
+++ b/examples/protocols/http2_request/main/golang_root_cert.pem
@@ -1,20 +1,31 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/examples/protocols/https_request/main/server_root_cert.pem b/examples/protocols/https_request/main/server_root_cert.pem
index 1d82449ab8..b85c8037f6 100644
--- a/examples/protocols/https_request/main/server_root_cert.pem
+++ b/examples/protocols/https_request/main/server_root_cert.pem
@@ -1,26 +1,31 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/examples/protocols/smtp_client/main/server_root_cert.pem b/examples/protocols/smtp_client/main/server_root_cert.pem
index e683c8374f..66f7bfd212 100644
--- a/examples/protocols/smtp_client/main/server_root_cert.pem
+++ b/examples/protocols/smtp_client/main/server_root_cert.pem
@@ -1,25 +1,31 @@
 -----BEGIN CERTIFICATE-----
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