diff --git a/src/main/java/io/sentry/ReportDependenciesMojo.java b/src/main/java/io/sentry/ReportDependenciesMojo.java
index ad282d0..7f8edec 100644
--- a/src/main/java/io/sentry/ReportDependenciesMojo.java
+++ b/src/main/java/io/sentry/ReportDependenciesMojo.java
@@ -27,7 +27,7 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-@Mojo(name = "reportDependencies", defaultPhase = LifecyclePhase.GENERATE_RESOURCES)
+@Mojo(name = "reportDependencies", defaultPhase = LifecyclePhase.GENERATE_RESOURCES, threadSafe = true)
 public class ReportDependenciesMojo extends AbstractMojo {
 
   public static final @NotNull String EXTERNAL_MODULES_FILE = "external-modules.txt";
diff --git a/src/main/java/io/sentry/UploadSourceBundleMojo.java b/src/main/java/io/sentry/UploadSourceBundleMojo.java
index 3d99569..3499def 100644
--- a/src/main/java/io/sentry/UploadSourceBundleMojo.java
+++ b/src/main/java/io/sentry/UploadSourceBundleMojo.java
@@ -24,7 +24,7 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-@Mojo(name = "uploadSourceBundle", defaultPhase = LifecyclePhase.GENERATE_RESOURCES)
+@Mojo(name = "uploadSourceBundle", defaultPhase = LifecyclePhase.GENERATE_RESOURCES, threadSafe = true)
 public class UploadSourceBundleMojo extends AbstractMojo {
 
   private static Logger logger = LoggerFactory.getLogger(UploadSourceBundleMojo.class);