diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index cf2fe64a..fa9b8cf5 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        java_version: [8, 11, 17, 21]
+        java_version: [8, 11, 17, 21, 25]
     steps:
       - uses: actions/checkout@v4
         with:
@@ -27,7 +27,7 @@ jobs:
           distribution: 'zulu'
           java-version: ${{ matrix.java_version }}
       - name: Cache Maven packages
-        uses: actions/cache@v4.0.2
+        uses: actions/cache@v5
         with:
           path: ~/.m2
           key: ${{ runner.os }}-java-${{ matrix.java_version }}-m2-${{ hashFiles('**/pom.xml') }}
diff --git a/core/pom.xml b/core/pom.xml
index 35e725d8..849a37bc 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -20,7 +20,7 @@
     <dependency>
       <groupId>org.ow2.asm</groupId>
       <artifactId>asm-tree</artifactId>
-      <version>9.7</version>
+      <version>9.9.1</version>
     </dependency>
     <dependency>
       <groupId>io.norberg</groupId>
diff --git a/core/src/test/java/com/spotify/missinglink/ClassLoadingUtil.java b/core/src/test/java/com/spotify/missinglink/ClassLoadingUtil.java
index e2604e25..2c3835f6 100644
--- a/core/src/test/java/com/spotify/missinglink/ClassLoadingUtil.java
+++ b/core/src/test/java/com/spotify/missinglink/ClassLoadingUtil.java
@@ -58,7 +58,8 @@ public static FileInputStream findClass(Class<?> aClass) throws Exception {
     List<File> files =
         Files.walk(outputDir.toPath())
             .map(Path::toFile)
-            .filter(file -> file.isFile() && file.getAbsolutePath().endsWith(name))
+            .filter(
+                file -> file.isFile() && file.getAbsolutePath().replace('\\', '/').endsWith(name))
             .collect(Collectors.toList());
     if (files.isEmpty()) {
       throw new IllegalStateException(