diff --git a/include/assume_role b/include/assume_role
index cba07ef5..9e43c0b3 100644
--- a/include/assume_role
+++ b/include/assume_role
@@ -64,6 +64,7 @@ assume_role(){
     export AWS_ACCESS_KEY_ID=$(cat $TEMP_STS_ASSUMED_FILE | jq -r '.Credentials.AccessKeyId')
     export AWS_SECRET_ACCESS_KEY=$(cat $TEMP_STS_ASSUMED_FILE | jq -r '.Credentials.SecretAccessKey')
     export AWS_SESSION_TOKEN=$(cat $TEMP_STS_ASSUMED_FILE | jq -r '.Credentials.SessionToken')
+    export AWS_SESSION_EXPIRATION=$(convert_date_to_timestamp "$(cat $TEMP_STS_ASSUMED_FILE | jq -r '.Credentials.Expiration')")
     rm -fr $TEMP_STS_ASSUMED_FILE
 }
 
diff --git a/include/os_detector b/include/os_detector
index af962d4c..a99ad45f 100644
--- a/include/os_detector
+++ b/include/os_detector
@@ -108,6 +108,14 @@ bsd_get_iso8601_timestamp() {
   "$DATE_CMD" -u +"%Y-%m-%dT%H:%M:%SZ"
 }
 
+gnu_convert_date_to_timestamp() {
+  date -d "$1" +%s
+}
+
+bsd_convert_date_to_timestamp() {
+  date -j -f "%Y-%m-%dT%H:%M:%SZ" "$1" "+%s"
+}
+
 gnu_test_tcp_connectivity() {
   HOST=$1
   PORT=$2
@@ -154,6 +162,9 @@ if [ "$OSTYPE" == "linux-gnu" ] || [ "$OSTYPE" == "linux-musl" ]; then
   test_tcp_connectivity() {
     gnu_test_tcp_connectivity "$1" "$2" "$3"
   }
+  convert_date_to_timestamp() {
+    gnu_convert_date_to_timestamp "$1"
+  }
 elif [[ "$OSTYPE" == "darwin"* ]]; then
   # BSD/OSX commands compatibility
   TEMP_REPORT_FILE=$(mktemp -t prowler.cred_report-XXXXXX)
@@ -189,6 +200,9 @@ elif [[ "$OSTYPE" == "darwin"* ]]; then
     get_iso8601_timestamp() {
       gnu_get_iso8601_timestamp
     }
+    convert_date_to_timestamp() {
+      gnu_convert_date_to_timestamp "$1"
+    }
   else
     how_older_from_today() {
       bsd_how_older_from_today "$1"
@@ -208,6 +222,9 @@ elif [[ "$OSTYPE" == "darwin"* ]]; then
     get_iso8601_timestamp() {
       bsd_get_iso8601_timestamp
     }
+    convert_date_to_timestamp() {
+      bsd_convert_date_to_timestamp "$1"
+    }
   fi
   if "$BASE64_CMD" --version >/dev/null 2>&1 ; then
     decode_report() {
@@ -248,6 +265,9 @@ elif [[ "$OSTYPE" == "cygwin" ]]; then
   test_tcp_connectivity() {
     gnu_test_tcp_connectivity "$1" "$2" "$3"
   }
+  convert_date_to_timestamp() {
+    gnu_convert_date_to_timestamp "$1"
+  }
 else
   echo "Unknown Operating System! Valid \$OSTYPE: linux-gnu, linux-musl, darwin* or cygwin"
   echo "Found: $OSTYPE"