diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef2839e5..2c1980e9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,7 @@ All notable changes to this project will be documented in this file.
 
 ### Changed
 
-- None
+- Change validation of existing certs tool in S3 buckets ([#1880](https://github.com/wazuh/wazuh-docker/pull/1880))
 
 ### Fixed
 
diff --git a/indexer-certs-creator/config/entrypoint.sh b/indexer-certs-creator/config/entrypoint.sh
index 51aedbcd..fa098c50 100644
--- a/indexer-certs-creator/config/entrypoint.sh
+++ b/indexer-certs-creator/config/entrypoint.sh
@@ -12,8 +12,8 @@ PACKAGES_URL=https://packages.wazuh.com/4.14/
 PACKAGES_DEV_URL=https://packages-dev.wazuh.com/4.14/
 
 ## Check if the cert tool exists in S3 buckets
-CERT_TOOL_PACKAGES=$(curl --silent -I $PACKAGES_URL$CERT_TOOL | grep -E "^HTTP" | awk  '{print $2}')
-CERT_TOOL_PACKAGES_DEV=$(curl --silent -I $PACKAGES_DEV_URL$CERT_TOOL | grep -E "^HTTP" | awk  '{print $2}')
+CERT_TOOL_PACKAGES=$(curl --silent --head --location --output /dev/null --write-out "%{http_code}" "$PACKAGES_URL$CERT_TOOL")
+CERT_TOOL_PACKAGES_DEV=$(curl --silent --head --location --output /dev/null --write-out "%{http_code}" "$PACKAGES_DEV_URL$CERT_TOOL")
 
 ## If cert tool exists in some bucket, download it, if not exit 1
 if [ "$CERT_TOOL_PACKAGES" = "200" ]; then