diff --git a/src/main/java/edu/byu/cs/autograder/quality/QualityAnalyzer.java b/src/main/java/edu/byu/cs/autograder/quality/QualityAnalyzer.java
index 5cc0b947b..693fa93ae 100644
--- a/src/main/java/edu/byu/cs/autograder/quality/QualityAnalyzer.java
+++ b/src/main/java/edu/byu/cs/autograder/quality/QualityAnalyzer.java
@@ -26,7 +26,7 @@ public class QualityAnalyzer {
     static {
         Path libsPath = new File("phases", "libs").toPath();
         try {
-            checkStyleJarPath = new File(libsPath.toFile(), "checkstyle-1.0.8.jar").getCanonicalPath();
+            checkStyleJarPath = new File(libsPath.toFile(), "checkstyle-1.0.9.jar").getCanonicalPath();
             File qualityRubric = new File(libsPath.toFile(), "qualityRubric.json");
             qualityRubricItems = Serializer.deserialize(new FileReader(qualityRubric), QualityRubric.class);
         } catch (IOException e) {
diff --git a/src/main/resources/phases/libs/checkstyle-1.0.8.jar b/src/main/resources/phases/libs/checkstyle-1.0.9.jar
similarity index 95%
rename from src/main/resources/phases/libs/checkstyle-1.0.8.jar
rename to src/main/resources/phases/libs/checkstyle-1.0.9.jar
index 8fa5cc325..4a2c39520 100644
Binary files a/src/main/resources/phases/libs/checkstyle-1.0.8.jar and b/src/main/resources/phases/libs/checkstyle-1.0.9.jar differ