Makefile in grape-jwt-authentication-2.4.3 vs Makefile in grape-jwt-authentication-2.4.4

@@ -17,9 +17,10 @@
 
 # Host binaries
 AWK ?= awk
 BASH ?= bash
 COMPOSE ?= docker-compose
+CP ?= cp
 DOCKER ?= docker
 GREP ?= grep
 ID ?= id
 MKDIR ?= mkdir
 RM ?= rm