diff --git a/pkgs/applications/virtualization/firecracker/default.nix b/pkgs/applications/virtualization/firecracker/default.nix
index cb8cc7ee1de2..79d1b606bcba 100644
--- a/pkgs/applications/virtualization/firecracker/default.nix
+++ b/pkgs/applications/virtualization/firecracker/default.nix
@@ -1,7 +1,7 @@
 { fetchurl, stdenv }:
 
 let
-  version = "0.20.0";
+  version = "0.21.1";
 
   suffix = {
     x86_64-linux  = "x86_64";
@@ -15,13 +15,13 @@ let
   };
 
   firecracker-bin = fetchbin "firecracker" {
-    x86_64-linux  = "073pp4q5dnyr126k8k7qdkqclqx18hj12app4gj2is0413gia8z9";
-    aarch64-linux = "1w5f522imq5dnjrdidnrq7jlwcdrsiz32shv9bh66dhy336sd8qw";
+    x86_64-linux = "0g4fja3bz1fsyz8vj99199yblkn46ygf33ldwd1ssw8f957vbwnb";
+    aarch64-linux = "1qyppcxnh7f42fs4px5rvkk6lza57h2sq9naskvqn5zy4vsvq89s";
   };
 
   jailer-bin = fetchbin "jailer" {
-    x86_64-linux  = "0falk6y9y0pimgav1yg6ydn6wsslz0my01qd9by8ipk3f3776531";
-    aarch64-linux = "1j4x4p4zz1ydvpzbbmxszyqv28qbl4v3hiwdj2f67f1jn1cv9l7z";
+    x86_64-linux = "0x89pfmqci9d3i9fi9b9zm94yr2v7pq7kp3drlb952jkdfj0njyk";
+    aarch64-linux = "03fx9sk88jm23wqm8fraqd1ccfhbqvc310mkfv1f5p2ykhq2ahrk";
   };
 
 in