diff --git a/libavutil/vulkan.c b/libavutil/vulkan.c
index b1c585292e..26b9b6f1fb 100644
--- a/libavutil/vulkan.c
+++ b/libavutil/vulkan.c
@@ -480,7 +480,10 @@ FFVkExecContext *ff_vk_exec_get(FFVkExecPool *pool)
 void ff_vk_exec_wait(FFVulkanContext *s, FFVkExecContext *e)
 {
     FFVulkanFunctions *vk = &s->vkfn;
+    pthread_mutex_lock(&e->lock);
     vk->WaitForFences(s->hwctx->act_dev, 1, &e->fence, VK_TRUE, UINT64_MAX);
+    ff_vk_exec_discard_deps(s, e);
+    pthread_mutex_unlock(&e->lock);
 }
 
 int ff_vk_exec_start(FFVulkanContext *s, FFVkExecContext *e)