diff --git a/repos.json.lock b/repos.json.lock
index dfa8c011d..375acdea6 100644
--- a/repos.json.lock
+++ b/repos.json.lock
@@ -1533,8 +1533,8 @@
             "url": "https://github.com/minion3665/nurpkgs"
         },
         "mio": {
-            "rev": "1d14b93790147b3cce40578ac4d12bf3f20a7fd0",
-            "sha256": "0ksbjnb9viwpv3c7zqv8a88ppxvapcf4ss4nk40nm0rxyyx7hyh9",
+            "rev": "3a51091f74438069d1e97800c7ff2485b63b2e92",
+            "sha256": "0xmh6fa8wgszr2zmshbi7ggfdnsw86yiyh5558asi9swzw1nmivg",
             "url": "https://github.com/mio-19/nurpkgs"
         },
         "misterio": {