Maven install failing - Source option 5 is no longer supported.

[acoutts]

andrewcoutts@Andrews-MacBook-Pro:~/Downloads/minimal-json-master$ mvn clean install
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO]
[INFO] minimal-json [bundle]
[INFO] minimal-json performance tests [jar]
[INFO] build [pom]
[INFO]
[INFO] ------------< com.eclipsesource.minimal-json:minimal-json >-------------
[INFO] Building minimal-json 0.9.6-SNAPSHOT [1/3]
[INFO] -------------------------------[ bundle ]-------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ minimal-json ---
[INFO] Deleting /Users/andrewcoutts/Downloads/minimal-json-master/com.eclipsesource.json/target
[INFO]
[INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ minimal-json ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /Users/andrewcoutts/Downloads/minimal-json-master/com.eclipsesource.json/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ minimal-json ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 15 source files to /Users/andrewcoutts/Downloads/minimal-json-master/com.eclipsesource.json/target/classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] Source option 5 is no longer supported. Use 6 or later.
[ERROR] Target option 1.5 is no longer supported. Use 1.6 or later.
[INFO] 2 errors
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] minimal-json ....................................... FAILURE [ 1.511 s]
[INFO] minimal-json performance tests ..................... SKIPPED
[INFO] build 0.9.6-SNAPSHOT ............................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.176 s
[INFO] Finished at: 2018-06-16T10:07:02-04:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.2:compile (default-compile) on project minimal-json: Compilation failure: Compilation failure:
[ERROR] Source option 5 is no longer supported. Use 6 or later.
[ERROR] Target option 1.5 is no longer supported. Use 1.6 or later.
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException