diff --git a/Running_Linux_OSX.txt b/Running_Linux_OSX.txt
index a2a2dba51d..9dadd10e78 100644
--- a/Running_Linux_OSX.txt
+++ b/Running_Linux_OSX.txt
@@ -64,7 +64,10 @@ The following need to be done at least once. They do not need to be repeated for
 -- OS X:
     1. Install BellSoft Java 8.
         % brew tap bell-sw/liberica
-        % brew install --cask liberica-jdk8-full
+        for macOS BigSur and later:
+             % brew install --cask liberica-jdk8-full
+        for macOS versions before BigSur:
+             % brew cask install liberica-jdk8-full
     2. Set JAVA_HOME environment variable to location of JRE installation.
        e.g. add the following to ~/.bashrc
            export JAVA_HOME=$(/usr/libexec/java_home -v 1.8)