--- src/CMakeLists.txt.orig	2021-03-09 18:14:44 UTC
+++ src/CMakeLists.txt
@@ -57,7 +57,7 @@ if (TCL_READLINE_H)
   message(STATUS "TCL readline header: ${TCL_READLINE_H}")
 endif()
 
-find_package(SWIG 3.0 REQUIRED)
+find_package(SWIG REQUIRED)
 include(UseSWIG)
 
 find_package(Boost REQUIRED)