diff --git a/poi/src/test/java/org/apache/poi/hssf/HSSFTestDataSamples.java b/poi/src/test/java/org/apache/poi/hssf/HSSFTestDataSamples.java
index e85ff044ab..32fdc0fc52 100644
--- a/poi/src/test/java/org/apache/poi/hssf/HSSFTestDataSamples.java
+++ b/poi/src/test/java/org/apache/poi/hssf/HSSFTestDataSamples.java
@@ -43,8 +43,8 @@ public final class HSSFTestDataSamples {
     }
 
     public static HSSFWorkbook openSampleWorkbook(String sampleFileName) {
-        try {
-            return new HSSFWorkbook(_inst.openResourceAsStream(sampleFileName));
+        try (InputStream stream = _inst.openResourceAsStream(sampleFileName)){
+            return new HSSFWorkbook(stream);
         } catch (IOException e) {
             throw new RuntimeException(e);
         }