diff --git a/dependency-check-core/src/main/java/org/owasp/dependencycheck/analyzer/CPEAnalyzer.java b/dependency-check-core/src/main/java/org/owasp/dependencycheck/analyzer/CPEAnalyzer.java
index 8f660801e..dc53ee3cd 100644
--- a/dependency-check-core/src/main/java/org/owasp/dependencycheck/analyzer/CPEAnalyzer.java
+++ b/dependency-check-core/src/main/java/org/owasp/dependencycheck/analyzer/CPEAnalyzer.java
@@ -481,7 +481,7 @@ public class CPEAnalyzer implements Analyzer {
      * @throws AnalysisException is thrown if there is an issue analyzing the dependency.
      */
     @Override
-    public void analyze(Dependency dependency, Engine engine) throws AnalysisException {
+    public synchronized void analyze(Dependency dependency, Engine engine) throws AnalysisException {
         try {
             determineCPE(dependency);
         } catch (CorruptIndexException ex) {