diff --git a/pkgs/os-specific/linux/forkstat/default.nix b/pkgs/os-specific/linux/forkstat/default.nix
index bde2cbbafa6..5d304d8ac03 100644
--- a/pkgs/os-specific/linux/forkstat/default.nix
+++ b/pkgs/os-specific/linux/forkstat/default.nix
@@ -2,10 +2,10 @@
 
 stdenv.mkDerivation rec {
   name = "forkstat-${version}";
-  version = "0.02.03";
+  version = "0.02.09";
   src = fetchurl {
-    url = "http://kernel.ubuntu.com/~cking/tarballs/forkstat/forkstat-${version}.tar.gz";
-    sha256 = "1dl95ijs9bs9s9i629bi88qmvxjl25ym742gc063bysbp8drban1";
+    url = "http://kernel.ubuntu.com/~cking/tarballs/forkstat/forkstat-${version}.tar.xz";
+    sha256 = "1h5ha9w6rawh9kx39swjxs029202qxi0j9w38y7ilwq5pj447bxw";
   };
   installFlags = [ "DESTDIR=$(out)" ];
   postInstall = ''
diff --git a/pkgs/os-specific/linux/smemstat/default.nix b/pkgs/os-specific/linux/smemstat/default.nix
index c4d699c395e..6abbd2d1ec5 100644
--- a/pkgs/os-specific/linux/smemstat/default.nix
+++ b/pkgs/os-specific/linux/smemstat/default.nix
@@ -2,10 +2,10 @@
 
 stdenv.mkDerivation rec {
   name = "smemstat-${version}";
-  version = "0.02.00";
+  version = "0.02.03";
   src = fetchurl {
-    url = "http://kernel.ubuntu.com/~cking/tarballs/smemstat/smemstat-${version}.tar.gz";
-    sha256 = "16in8bzsrrcz7mc5qvyvjkxgpzz4bnq8zvkb7vsv6qfgyd3xr1dp";
+    url = "http://kernel.ubuntu.com/~cking/tarballs/smemstat/smemstat-${version}.tar.xz";
+    sha256 = "04q06wb37n4g1dlsjl8j2bwzd7qis4wanm0f4xg8y29br6skljx1";
   };
   buildInputs = [ ncurses ];
   installFlags = [ "DESTDIR=$(out)" ];
diff --git a/pkgs/tools/system/stress-ng/default.nix b/pkgs/tools/system/stress-ng/default.nix
index 0c5a088daf9..8237a4928a0 100644
--- a/pkgs/tools/system/stress-ng/default.nix
+++ b/pkgs/tools/system/stress-ng/default.nix
@@ -4,11 +4,11 @@
 
 stdenv.mkDerivation rec {
   name = "stress-ng-${version}";
-  version = "0.09.49";
+  version = "0.09.54";
 
   src = fetchurl {
     url = "https://kernel.ubuntu.com/~cking/tarballs/stress-ng/${name}.tar.xz";
-    sha256 = "1ll2i7vgnwpfhvq963m2aqwffkrmjggnscpmwn8qbdh0a82lmq2x";
+    sha256 = "0qbgabrxm8aj4a6bgf55mi7rv9sqcgl3kkm7j3qhkqjfn9rqzslb";
   };
 
   # All platforms inputs then Linux-only ones