diff --git a/pkgs/by-name/ca/cadical/package.nix b/pkgs/by-name/ca/cadical/package.nix
index f3269d749265..7cc3cdf1e68e 100644
--- a/pkgs/by-name/ca/cadical/package.nix
+++ b/pkgs/by-name/ca/cadical/package.nix
@@ -4,7 +4,7 @@
   fetchFromGitHub,
   copyPkgconfigItems,
   makePkgconfigItem,
-  version ? "2.2.0",
+  version ? "3.0.0",
 }:
 
 stdenv.mkDerivation rec {
@@ -17,7 +17,8 @@ stdenv.mkDerivation rec {
     rev = "rel-${version}";
     hash =
       {
-        "2.2.0" = "sha256-6O0lz0YJzk1eJblQ0/f9PnSYqD8WoendIZioQiGUpCg=";
+        "3.0.0" = "sha256-pymbSC6bwQQ0YCtJd3xWZiC22UEkFiKSLObSOnoQj9I=";
+        "2.2.1" = "sha256-dYRaw9DI63Nqz0IJkfQYU4y00KSfq1Xv0xZuL1G15CY=";
         "2.1.3" = "sha256-W3kO+6nVzkmJXyHJU+NZWP0oatK3gon4EWF1/03rgL4=";
         "2.0.0" = "sha256-qoeEM9SdpuFuBPeQlCzuhPLcJ+bMQkTUTGiT8QdU8rc=";
       }
diff --git a/pkgs/by-name/ca/cadical_2/package.nix b/pkgs/by-name/ca/cadical_2/package.nix
new file mode 100644
index 000000000000..657d086ae196
--- /dev/null
+++ b/pkgs/by-name/ca/cadical_2/package.nix
@@ -0,0 +1,6 @@
+{
+  cadical,
+  version ? "2.2.1",
+}:
+
+cadical.override { inherit version; }
diff --git a/pkgs/by-name/st/stp/package.nix b/pkgs/by-name/st/stp/package.nix
index f6b63167cbd8..45eb1b76ca84 100644
--- a/pkgs/by-name/st/stp/package.nix
+++ b/pkgs/by-name/st/stp/package.nix
@@ -15,7 +15,7 @@
   minisat,
   cryptominisat,
   gmp,
-  cadical,
+  cadical_2,
   gtest,
   lit,
   outputcheck,
@@ -85,8 +85,8 @@ stdenv.mkDerivation (finalAttrs: {
       cadicalDependency = symlinkJoin {
         name = "stp-${finalAttrs.version}-cadical";
         paths = [
-          cadical.lib
-          cadical.dev
+          cadical_2.lib
+          cadical_2.dev
         ];
       };
     in