diff --git a/src/main/groovy/io/seqera/wave/configuration/ScanConfig.groovy b/src/main/groovy/io/seqera/wave/configuration/ScanConfig.groovy
index eee8e1d62..38daf9e1f 100644
--- a/src/main/groovy/io/seqera/wave/configuration/ScanConfig.groovy
+++ b/src/main/groovy/io/seqera/wave/configuration/ScanConfig.groovy
@@ -78,9 +78,14 @@ class ScanConfig {
 
     @Memoized
     Path getCacheDirectory() {
-        final result = Path.of(buildDirectory).toAbsolutePath().resolve('.trivy-cache')
-        Files.createDirectories(result)
-        return result
+        try {
+            final result = Path.of(buildDirectory).toAbsolutePath().resolve('.trivy-cache')
+            Files.createDirectories(result)
+            return result
+        } catch (Exception e) {
+            log.error("Failed to create cache directory: ${e.message}")
+            return null
+        }
     }
 
     String getRequestsCpu() {
diff --git a/src/test/groovy/io/seqera/wave/service/k8s/K8sServiceImplTest.groovy b/src/test/groovy/io/seqera/wave/service/k8s/K8sServiceImplTest.groovy
index 5ce208064..3d31a0e6c 100644
--- a/src/test/groovy/io/seqera/wave/service/k8s/K8sServiceImplTest.groovy
+++ b/src/test/groovy/io/seqera/wave/service/k8s/K8sServiceImplTest.groovy
@@ -50,14 +50,6 @@ import io.seqera.wave.service.mirror.MirrorConfig
 @MicronautTest
 class K8sServiceImplTest extends Specification {
 
-    @Replaces(ScanConfig.class)
-    static class MockScanConfig extends ScanConfig {
-        @Override
-        Path getCacheDirectory() {
-            return Path.of('/build/scan/cache')
-        }
-    }
-
     def 'should validate context OK ' () {
         when:
         def PROPS = [