diff --git a/manual_scans/aws/requirements.txt b/manual_scans/aws/requirements.txt
index e3513e54..4ca555c3 100644
--- a/manual_scans/aws/requirements.txt
+++ b/manual_scans/aws/requirements.txt
@@ -1,4 +1,3 @@
 boto3==1.35.19
 dnspython==2.7.0
 requests==2.32.3
-regex==2024.11.6
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 8ed09600..f10c902c 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -2,7 +2,6 @@ boto3==1.34.25
 cloudflare==2.20.0
 dnspython==2.7.0
 requests==2.32.3
-regex==2024.11.6
 black==24.10.0
 prospector==1.13.0
 pytest==8.3.4
diff --git a/requirements-tests.txt b/requirements-tests.txt
index e13697cc..6fe308de 100644
--- a/requirements-tests.txt
+++ b/requirements-tests.txt
@@ -2,7 +2,6 @@ boto3==1.34.25
 cloudflare==3.1.1
 dnspython==2.7.0
 requests==2.32.3
-regex==2024.11.6
 black==24.10.0
 prospector==1.13.0
 pytest==8.3.4
diff --git a/scripts/lambda-build/create-package-for-each.sh b/scripts/lambda-build/create-package-for-each.sh
index 42e78c2b..c104c1b9 100755
--- a/scripts/lambda-build/create-package-for-each.sh
+++ b/scripts/lambda-build/create-package-for-each.sh
@@ -35,15 +35,6 @@ do
     echo "Installing dependencies..."
     echo "From: requirements.txt file exists..."
     pip install -r "$FILE"
-
-    # Install regex package...
-    pip install --platform $platform \
-      --target $path_cwd/build/env_$i/lib/$runtime/site-packages \
-      --implementation cp \
-      --python-version ${runtime:6} \
-      --only-binary=:all: --upgrade \
-      regex
-
   else
     echo "Error: requirements.txt does not exist!"
   fi
diff --git a/scripts/lambda-build/create-package.sh b/scripts/lambda-build/create-package.sh
index 2a9c9fc0..fbe75c24 100755
--- a/scripts/lambda-build/create-package.sh
+++ b/scripts/lambda-build/create-package.sh
@@ -31,15 +31,6 @@ if [ -f "$FILE" ]; then
   echo "Installing dependencies..."
   echo "From: requirements.txt file exists..."
   pip install -r "$FILE"
-
-  # Install regex package...
-  pip install --platform $platform \
-    --target $path_cwd/build/env_$function_name/lib/$runtime/site-packages \
-    --implementation cp \
-    --python-version ${runtime:6} \
-    --only-binary=:all: --upgrade \
-    regex
-
 else
   echo "Error: requirements.txt does not exist!"
 fi
diff --git a/utils/utils_aws_manual.py b/utils/utils_aws_manual.py
index 53ca17ad..8852196c 100644
--- a/utils/utils_aws_manual.py
+++ b/utils/utils_aws_manual.py
@@ -1,10 +1,14 @@
+import re
 import warnings
 
 import boto3
-import regex
 import requests
 import urllib3
 
+# Compile once
+BUCKET_URL_ENDPOINT = re.compile(r"^.+\.s3\.([a-z0-9-]+\.)?amazonaws\.com$")
+BUCKET_WEBSITE_ENDPOINT = re.compile(r"^.+\.s3-website[-.]([a-z0-9-]+\.)?amazonaws\.com$")
+
 
 def list_hosted_zones_manual_scan():
     session = boto3.Session()
@@ -63,12 +67,12 @@ def get_cloudfront_origin_url(domain_name):
 
 def is_s3_bucket_url(url):
     # bucket.s3.amazonaws.com or bucket.s3.region.amazonaws.com
-    return url is not None and regex.match(r"^.+\.s3.([a-z0-9-]+\.)?amazonaws.com$", url) is not None
+    return url and BUCKET_URL_ENDPOINT.match(url)
 
 
 def is_s3_website_endpoint_url(url):
     # bucket.s3-website-region.amazonaws.com
-    return url is not None and regex.match(r"^.+\.s3-website[-\.]([a-z0-9-]+\.)?amazonaws.com$", url) is not None
+    return url and BUCKET_WEBSITE_ENDPOINT.match(url)
 
 
 def vulnerable_cloudfront_s3_manual(domain_name):