diff --git a/pkgs/development/libraries/libuv/default.nix b/pkgs/development/libraries/libuv/default.nix
index 941ab6710c2e..fdf5191bf720 100644
--- a/pkgs/development/libraries/libuv/default.nix
+++ b/pkgs/development/libraries/libuv/default.nix
@@ -2,19 +2,19 @@
 , ApplicationServices, CoreServices }:
 
 stdenv.mkDerivation rec {
-  version = "1.11.0";
+  version = "1.12.0";
   name = "libuv-${version}";
 
   src = fetchFromGitHub {
     owner = "libuv";
     repo = "libuv";
     rev = "v${version}";
-    sha256 = "02sm7f3l0shpfz25b77q2jjvlypc1mmz4zpzfgfmiplhgxxaa6la";
+    sha256 = "0m025i0sfm4iv3aiic88x4y4bbhhdb204pmd9r383fsl458fck2p";
   };
 
   postPatch = let
     toDisable = [
-      "getnameinfo_basic" # probably network-dependent
+      "getnameinfo_basic" "udp_send_hang_loop" # probably network-dependent
       "spawn_setuid_fails" "spawn_setgid_fails" "fs_chown" # user namespaces
       "getaddrinfo_fail" "getaddrinfo_fail_sync"
     ]
diff --git a/pkgs/os-specific/linux/systemd/default.nix b/pkgs/os-specific/linux/systemd/default.nix
index d1042723a71a..3092aba506b6 100644
--- a/pkgs/os-specific/linux/systemd/default.nix
+++ b/pkgs/os-specific/linux/systemd/default.nix
@@ -9,14 +9,14 @@
 assert stdenv.isLinux;
 
 stdenv.mkDerivation rec {
-  version = "232";
+  version = "233";
   name = "systemd-${version}";
 
   src = fetchFromGitHub {
     owner = "nixos";
     repo = "systemd";
-    rev = "66e778e851440fde7f20cff0c24d23538144be8d";
-    sha256 = "1valz8v2q4cj0ipz2b6mh5p0rjxpy3m88gg9xa2rcc4gcmscndzk";
+    rev = "a5af87e469ed3bd806d1ac34716d4f17ce9d3464";
+    sha256 = "14slhk9p1f4ngxhhsmk8i1irl6jiffs1ln84ddcqc8iy22cyqvs3";
   };
 
   outputs = [ "out" "lib" "man" "dev" ];