diff --git a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/ExecuteKotlinScriptMojo.java b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/ExecuteKotlinScriptMojo.java
index 2100e5d9c1e..1738772a417 100644
--- a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/ExecuteKotlinScriptMojo.java
+++ b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/ExecuteKotlinScriptMojo.java
@@ -76,7 +76,7 @@ import java.util.List;
  *     mojo.getLog().info("kotlin build script accessing build info of ${mojo.project.artifactId} project")
  * </code></pre>
  */
-@Mojo(name = "script", requiresDependencyResolution = ResolutionScope.COMPILE)
+@Mojo(name = "script", requiresDependencyResolution = ResolutionScope.COMPILE, threadSafe = false)
 public class ExecuteKotlinScriptMojo extends AbstractMojo {
     /**
      * The Kotlin script file to be executed.
diff --git a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/K2JSCompilerMojo.java b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/K2JSCompilerMojo.java
index 98ce7f21b45..63680623900 100644
--- a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/K2JSCompilerMojo.java
+++ b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/K2JSCompilerMojo.java
@@ -45,7 +45,7 @@ import java.util.concurrent.locks.ReentrantLock;
  *
  * @noinspection UnusedDeclaration
  */
-@Mojo(name = "js", defaultPhase = LifecyclePhase.COMPILE, requiresDependencyResolution = ResolutionScope.COMPILE, threadSafe = true)
+@Mojo(name = "js", defaultPhase = LifecyclePhase.COMPILE, requiresDependencyResolution = ResolutionScope.COMPILE, threadSafe = false)
 public class K2JSCompilerMojo extends KotlinCompileMojoBase<K2JSCompilerArguments> {
 
     private static final String OUTPUT_DIRECTORIES_COLLECTOR_PROPERTY_NAME = "outputDirectoriesCollector";
diff --git a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/K2JVMCompileMojo.java b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/K2JVMCompileMojo.java
index 1adbc04f682..e582adb80dc 100644
--- a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/K2JVMCompileMojo.java
+++ b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/K2JVMCompileMojo.java
@@ -40,7 +40,7 @@ import static org.jetbrains.kotlin.maven.Util.filterClassPath;
  *
  * @noinspection UnusedDeclaration
  */
-@Mojo(name = "compile", defaultPhase = LifecyclePhase.COMPILE, requiresDependencyResolution = ResolutionScope.COMPILE)
+@Mojo(name = "compile", defaultPhase = LifecyclePhase.COMPILE, requiresDependencyResolution = ResolutionScope.COMPILE, threadSafe = false)
 public class K2JVMCompileMojo extends KotlinCompileMojoBase<K2JVMCompilerArguments> {
     /**
      * Project classpath.
diff --git a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/KotlinTestCompileMojo.java b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/KotlinTestCompileMojo.java
index 1b1dc02e728..f8ad781a319 100644
--- a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/KotlinTestCompileMojo.java
+++ b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/KotlinTestCompileMojo.java
@@ -41,7 +41,8 @@ import java.util.List;
 
 @Mojo(name = "test-compile",
         defaultPhase = LifecyclePhase.TEST_COMPILE,
-        requiresDependencyResolution = ResolutionScope.TEST
+        requiresDependencyResolution = ResolutionScope.TEST,
+        threadSafe = false
 )
 public class KotlinTestCompileMojo extends K2JVMCompileMojo {
     /**
diff --git a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/KotlinTestJSCompilerMojo.java b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/KotlinTestJSCompilerMojo.java
index 9471912160e..3e22d60e1c7 100644
--- a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/KotlinTestJSCompilerMojo.java
+++ b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/KotlinTestJSCompilerMojo.java
@@ -36,7 +36,8 @@ import java.util.List;
  */
 @Mojo(name = "test-js",
         defaultPhase = LifecyclePhase.TEST_COMPILE,
-        requiresDependencyResolution = ResolutionScope.TEST
+        requiresDependencyResolution = ResolutionScope.TEST,
+        threadSafe = true
 )
 public class KotlinTestJSCompilerMojo extends K2JSCompilerMojo {
 
diff --git a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/MetadataMojo.java b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/MetadataMojo.java
index b787bfb7cba..5ddeef82c7e 100644
--- a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/MetadataMojo.java
+++ b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/MetadataMojo.java
@@ -18,7 +18,7 @@ import java.util.List;
 import static com.intellij.openapi.util.text.StringUtil.join;
 import static org.jetbrains.kotlin.maven.Util.filterClassPath;
 
-@Mojo(name = "metadata", defaultPhase = LifecyclePhase.PROCESS_SOURCES, requiresDependencyResolution = ResolutionScope.COMPILE)
+@Mojo(name = "metadata", defaultPhase = LifecyclePhase.PROCESS_SOURCES, requiresDependencyResolution = ResolutionScope.COMPILE, threadSafe = false)
 public class MetadataMojo extends KotlinCompileMojoBase<K2MetadataCompilerArguments> {
     @Parameter(defaultValue = "${project.compileClasspathElements}", required = true, readonly = true)
     public List<String> classpath;
diff --git a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/TestMetadataMojo.java b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/TestMetadataMojo.java
index f1108a21c46..d612d2daa48 100644
--- a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/TestMetadataMojo.java
+++ b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/TestMetadataMojo.java
@@ -12,7 +12,9 @@ import org.jetbrains.kotlin.cli.common.arguments.K2MetadataCompilerArguments;
 import java.io.File;
 import java.util.List;
 
-@Mojo(name = "test-metadata", defaultPhase = LifecyclePhase.PROCESS_TEST_SOURCES, requiresDependencyResolution = ResolutionScope.TEST)
+@Mojo(name = "test-metadata", defaultPhase = LifecyclePhase.PROCESS_TEST_SOURCES, requiresDependencyResolution = ResolutionScope.TEST,
+        threadSafe = false
+)
 public class TestMetadataMojo extends MetadataMojo {
     @Parameter(property = "maven.test.skip", defaultValue = "false")
     private boolean skip;
diff --git a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/kapt/KaptJVMCompilerMojo.java b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/kapt/KaptJVMCompilerMojo.java
index 13b7fa4a6b0..7823986a1be 100644
--- a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/kapt/KaptJVMCompilerMojo.java
+++ b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/kapt/KaptJVMCompilerMojo.java
@@ -20,7 +20,7 @@ import static org.jetbrains.kotlin.maven.kapt.AnnotationProcessingManager.getGen
 import static org.jetbrains.kotlin.maven.kapt.AnnotationProcessingManager.getStubsDirectory;
 
 /** @noinspection UnusedDeclaration */
-@Mojo(name = "kapt", defaultPhase = LifecyclePhase.PROCESS_SOURCES, requiresDependencyResolution = ResolutionScope.COMPILE)
+@Mojo(name = "kapt", defaultPhase = LifecyclePhase.PROCESS_SOURCES, requiresDependencyResolution = ResolutionScope.COMPILE, threadSafe = false)
 public class KaptJVMCompilerMojo extends K2JVMCompileMojo {
     @Parameter
     private String[] annotationProcessors;
diff --git a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/kapt/KaptTestJvmCompilerMojo.java b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/kapt/KaptTestJvmCompilerMojo.java
index 058b8e264dc..0f6a58efa28 100644
--- a/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/kapt/KaptTestJvmCompilerMojo.java
+++ b/libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/kapt/KaptTestJvmCompilerMojo.java
@@ -17,7 +17,7 @@ import java.util.List;
  *
  * @noinspection UnusedDeclaration
  */
-@Mojo(name = "test-kapt", defaultPhase = LifecyclePhase.PROCESS_TEST_SOURCES, requiresDependencyResolution = ResolutionScope.TEST)
+@Mojo(name = "test-kapt", defaultPhase = LifecyclePhase.PROCESS_TEST_SOURCES, requiresDependencyResolution = ResolutionScope.TEST, threadSafe = false)
 public class KaptTestJvmCompilerMojo extends KaptJVMCompilerMojo {
     /**
      * Flag to allow test compilation to be skipped.