diff --git a/prowler/changelog.d/bucket-validation-syntaxwarning.fixed.md b/prowler/changelog.d/bucket-validation-syntaxwarning.fixed.md
new file mode 100644
index 0000000000..ceba09541c
--- /dev/null
+++ b/prowler/changelog.d/bucket-validation-syntaxwarning.fixed.md
@@ -0,0 +1 @@
+Fix invalid escape sequence `SyntaxWarning` raised on startup by the S3 bucket name validation regex
diff --git a/prowler/providers/aws/lib/arguments/arguments.py b/prowler/providers/aws/lib/arguments/arguments.py
index 50f4665b2d..2d1632422b 100644
--- a/prowler/providers/aws/lib/arguments/arguments.py
+++ b/prowler/providers/aws/lib/arguments/arguments.py
@@ -235,7 +235,7 @@ def validate_arguments(arguments: Namespace) -> tuple[bool, str]:
 def validate_bucket(bucket_name: str) -> str:
     """validate_bucket validates that the input bucket_name is valid"""
     if search(
-        "^(?!^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$)(?!.*\.{2})(?!.*\.-)(?!.*-\.)(?!^xn--)(?!^sthree-)(?!^amzn-s3-demo-)(?!.*--table-s3$)[a-z0-9][a-z0-9.-]{1,61}[a-z0-9]$",
+        r"^(?!^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$)(?!.*\.{2})(?!.*\.-)(?!.*-\.)(?!^xn--)(?!^sthree-)(?!^amzn-s3-demo-)(?!.*--table-s3$)[a-z0-9][a-z0-9.-]{1,61}[a-z0-9]$",
         bucket_name,
     ):
         return bucket_name