diff --git a/java-spiffe-provider/src/main/java/spiffe/provider/X509SourceManager.java b/java-spiffe-provider/src/main/java/spiffe/provider/X509SourceManager.java
index 2642d51..cbcf8fa 100644
--- a/java-spiffe-provider/src/main/java/spiffe/provider/X509SourceManager.java
+++ b/java-spiffe-provider/src/main/java/spiffe/provider/X509SourceManager.java
@@ -20,7 +20,7 @@ public class X509SourceManager {
 
     private static volatile X509Source x509Source;
 
-    public X509SourceManager() {
+    private X509SourceManager() {
     }
 
     /**