diff --git a/core/testing/src/main/java/io/github/droidkaigi/confsched2023/testing/LottieTestRule.kt b/core/testing/src/main/java/io/github/droidkaigi/confsched2023/testing/LottieTestRule.kt
index fca4fc3f1..058d58046 100644
--- a/core/testing/src/main/java/io/github/droidkaigi/confsched2023/testing/LottieTestRule.kt
+++ b/core/testing/src/main/java/io/github/droidkaigi/confsched2023/testing/LottieTestRule.kt
@@ -7,12 +7,13 @@ import java.util.concurrent.Executor
 import java.util.concurrent.Executors
 
 class LottieTestRule : TestWatcher() {
+    private val defaultExecutor = Executors.newCachedThreadPool()
 
     override fun starting(description: Description) {
         LottieTask.EXECUTOR = Executor(Runnable::run)
     }
 
     override fun finished(description: Description) {
-        LottieTask.EXECUTOR = Executors.newCachedThreadPool()
+        LottieTask.EXECUTOR = defaultExecutor
     }
 }