diff --git a/ffmpeg-nightly.json b/ffmpeg-nightly.json
index c04153160d..e1a82c7fc3 100644
--- a/ffmpeg-nightly.json
+++ b/ffmpeg-nightly.json
@@ -1,17 +1,17 @@
 {
-    "version": "20181220-555f332",
+    "version": "20181221-53d3a1c",
     "homepage": "https://ffmpeg.zeranoe.com/builds/",
     "license": "GPL-3.0",
     "architecture": {
         "64bit": {
-            "url": "https://ffmpeg.zeranoe.com/builds/win64/static/ffmpeg-20181220-555f332-win64-static.zip",
-            "hash": "3d5ff121cec82e74d1bb70ca431c48653d75594024715bf8a8810cd223356dea",
-            "extract_dir": "ffmpeg-20181220-555f332-win64-static"
+            "url": "https://ffmpeg.zeranoe.com/builds/win64/static/ffmpeg-20181221-53d3a1c-win64-static.zip",
+            "hash": "7ffee093c693ac8e104980b5359b565f512f76d9406557715966c3eebc8786db",
+            "extract_dir": "ffmpeg-20181221-53d3a1c-win64-static"
         },
         "32bit": {
-            "url": "https://ffmpeg.zeranoe.com/builds/win32/static/ffmpeg-20181220-555f332-win32-static.zip",
-            "hash": "b3202192aa05d8107573d74520a45dc760c487a6d0a8cb1e0090c55133547b66",
-            "extract_dir": "ffmpeg-20181220-555f332-win32-static"
+            "url": "https://ffmpeg.zeranoe.com/builds/win32/static/ffmpeg-20181221-53d3a1c-win32-static.zip",
+            "hash": "86b378efc0caed12bbf12d72f9fa0374d226eed2032637129519097cf0bfe51b",
+            "extract_dir": "ffmpeg-20181221-53d3a1c-win32-static"
         }
     },
     "bin": [