Build Failed. Getting class file has wrong version error.

[samshaikh87]

Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project readyapi-postman-plugin: Compilation failure
[ERROR] ../src/main/java/com/smartbear/postman/script/AddEqualsAssertionCommand.java:[19,42] cannot access com.eviware.soapui.model.testsuite.Assertable
[ERROR] bad class file: ...m2\repository\com\smartbear\ready-api-soapui\3.3.2\ready-api-soapui-3.3.2.jar(com/eviware/soapui/model/testsuite/Assertable.class)
[ERROR] class file has wrong version 55.0, should be 52.0
[ERROR] Please remove or make sure it appears in the correct subdirectory of the classpath.

Both java and javac version are same...

javac -version
javac 1.8.0_261

java -version
java version "1.8.0_261"
Java(TM) SE Runtime Environment (build 1.8.0_261-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.261-b12, mixed mode)

Please check your java file is compiling correctly and also revert the java version to be used.