diff --git a/pkgs/development/nim-packages/karax/default.nix b/pkgs/development/nim-packages/karax/default.nix
index 35a5c78ee56a..8e8f11b228a4 100644
--- a/pkgs/development/nim-packages/karax/default.nix
+++ b/pkgs/development/nim-packages/karax/default.nix
@@ -3,6 +3,6 @@
 fetchFromGitHub {
   owner = "karaxnim";
   repo = "karax";
-  rev = "1.1.2";
-  sha256 = "07ykrd21hd76vlmkqpvv5xvaxw6aaq87bky47p2420ni85a6d94j";
+  rev = "fa4a2dc";
+  sha256 = "0xl83jsfb9l8kb0nfan9h5y6v96iz4psng2fx06a0qmig4993408";
 }
diff --git a/pkgs/development/nim-packages/redpool/default.nix b/pkgs/development/nim-packages/redpool/default.nix
index 6c4c8a8e193c..76b222739cae 100644
--- a/pkgs/development/nim-packages/redpool/default.nix
+++ b/pkgs/development/nim-packages/redpool/default.nix
@@ -3,6 +3,6 @@
 fetchFromGitHub {
   owner = "zedeus";
   repo = "redpool";
-  rev = "f880f49";
-  sha256 = "01n73bpgfdz2a3qvcfxsq4a6gxbhabf2n5np1ilzgdqkzcd4jf9b";
+  rev = "8b7c1db";
+  sha256 = "10xh5fhwnahnq1nf6j69vvnbi55kixa0ari630gr6cdx80arvbs6";
 }
diff --git a/pkgs/servers/nitter/default.nix b/pkgs/servers/nitter/default.nix
index de51da4ca661..32c7ac21dae4 100644
--- a/pkgs/servers/nitter/default.nix
+++ b/pkgs/servers/nitter/default.nix
@@ -2,14 +2,14 @@
 
 nimPackages.buildNimPackage rec {
   pname = "nitter";
-  version = "unstable-2022-01-32";
+  version = "unstable-2022-02-11";
   nimBinOnly = true;
 
   src = fetchFromGitHub {
     owner = "zedeus";
     repo = "nitter";
-    rev = "cdb4efadfeb5102b501c7ff79261fefc7327edb9";
-    sha256 = "sha256-kNK0UQd1whkaZwj98b2JYtYwjUSE1qBcAYytqnSaK1o=";
+    rev = "6695784050605c77a301c0a66764fa9a9580a2f5";
+    sha256 = "1lddzf6m74bw5kkv465cp211xxqbwnfacav7ia3y9i38rrnqwk6m";
   };
 
   buildInputs = with nimPackages; [