diff --git a/dagger.nimble b/dagger.nimble
index cfe7da56..5448d9f9 100644
--- a/dagger.nimble
+++ b/dagger.nimble
@@ -18,10 +18,10 @@ requires "nim >= 1.2.0",
          "libp2p",
          "metrics",
          "nimcrypto >= 0.4.1",
-         "nitro >= 0.4.0 & < 0.5.0",
+         "nitro >= 0.5.1 & < 0.6.0",
          "presto",
          "protobuf_serialization >= 0.2.0 & < 0.3.0",
-         "questionable >= 0.9.1 & < 0.10.0",
+         "questionable >= 0.10.2 & < 0.11.0",
          "secp256k1",
          "stew",
          "upraises >= 0.1.0 & < 0.2.0"
diff --git a/vendor/nim-nitro b/vendor/nim-nitro
index 9396fcb7..6b4c455b 160000
--- a/vendor/nim-nitro
+++ b/vendor/nim-nitro
@@ -1 +1 @@
-Subproject commit 9396fcb7d0bd8eac6a4557ee6d7852e5bb5743ea
+Subproject commit 6b4c455bf4dad7449c1580055733a1738fcd5aec