diff --git a/pkgs/applications/networking/cluster/terraform-providers/data.nix b/pkgs/applications/networking/cluster/terraform-providers/data.nix
index 6994f2b85a33..5c8325902502 100644
--- a/pkgs/applications/networking/cluster/terraform-providers/data.nix
+++ b/pkgs/applications/networking/cluster/terraform-providers/data.nix
@@ -224,6 +224,14 @@
       version = "2.7.0";
       sha256  = "11c54waq7w34l79ak4kizjkmh8zjca5ygh9yib691hdmxsx2cifj";
     };
+  ct =
+    {
+      owner   = "poseidon";
+      repo    = "terraform-provider-ct";
+      rev     = "v0.5.0";
+      version = "0.5.0";
+      sha256  = "1zqfaxlyhr9vpqj2qqpfyh1f1nfpynb7c5ris6mdmy9zin55ppni";
+    };
   datadog =
     {
       owner   = "terraform-providers";
diff --git a/pkgs/applications/networking/cluster/terraform-providers/update-all b/pkgs/applications/networking/cluster/terraform-providers/update-all
index 70dfc2f825dd..aeb395604942 100755
--- a/pkgs/applications/networking/cluster/terraform-providers/update-all
+++ b/pkgs/applications/networking/cluster/terraform-providers/update-all
@@ -118,6 +118,7 @@ slugs=(
   carlpett/terraform-provider-sops
   poseidon/terraform-provider-matchbox
   spaceapegames/terraform-provider-wavefront
+  poseidon/terraform-provider-ct
   tweag/terraform-provider-nixos
   tweag/terraform-provider-secret
 )