diff --git a/pmd-plsql/src/main/java/net/sourceforge/pmd/lang/plsql/PLSQLTokenManager.java b/pmd-plsql/src/main/java/net/sourceforge/pmd/lang/plsql/PLSQLTokenManager.java
index e07ee37d39..a566eeadf5 100644
--- a/pmd-plsql/src/main/java/net/sourceforge/pmd/lang/plsql/PLSQLTokenManager.java
+++ b/pmd-plsql/src/main/java/net/sourceforge/pmd/lang/plsql/PLSQLTokenManager.java
@@ -6,13 +6,20 @@ package net.sourceforge.pmd.lang.plsql;
 
 import java.io.Reader;
 
+import net.sourceforge.pmd.annotation.InternalApi;
+import net.sourceforge.pmd.lang.ParserOptions;
 import net.sourceforge.pmd.lang.TokenManager;
 import net.sourceforge.pmd.lang.ast.SimpleCharStream;
 import net.sourceforge.pmd.lang.plsql.ast.PLSQLParserTokenManager;
 
 /**
  * PLSQL Token Manager implementation.
+ *
+ * @deprecated This is internal API, use {@link net.sourceforge.pmd.lang.Parser#getTokenManager(String, Reader)} via
+ *             {@link net.sourceforge.pmd.lang.LanguageVersionHandler#getParser(ParserOptions)}.
  */
+@Deprecated
+@InternalApi
 public class PLSQLTokenManager implements TokenManager {
     private final PLSQLParserTokenManager tokenManager;