diff --git a/pkg/scalers/cassandra_scaler.go b/pkg/scalers/cassandra_scaler.go
index 361dbfc44d2..dd5db28355e 100644
--- a/pkg/scalers/cassandra_scaler.go
+++ b/pkg/scalers/cassandra_scaler.go
@@ -313,6 +313,23 @@ func (s *cassandraScaler) GetQueryResult(ctx context.Context) (int64, error) {
 
 // Close closes the Cassandra session connection.
 func (s *cassandraScaler) Close(_ context.Context) error {
+	// clean up any temporary files
+	if strings.TrimSpace(s.metadata.cert) != "" {
+		if err := os.Remove(s.metadata.cert); err != nil {
+			return err
+		}
+	}
+	if strings.TrimSpace(s.metadata.key) != "" {
+		if err := os.Remove(s.metadata.key); err != nil {
+			return err
+		}
+	}
+	if strings.TrimSpace(s.metadata.ca) != "" {
+		if err := os.Remove(s.metadata.ca); err != nil {
+			return err
+		}
+	}
+
 	if s.session != nil {
 		s.session.Close()
 	}