diff --git a/pkgs/development/ocaml-modules/riot/default.nix b/pkgs/development/ocaml-modules/riot/default.nix
index e03ac2c209ed..e830e7034e10 100644
--- a/pkgs/development/ocaml-modules/riot/default.nix
+++ b/pkgs/development/ocaml-modules/riot/default.nix
@@ -4,24 +4,26 @@
 , fetchurl
 , iomux
 , ptime
+, telemetry
 , uri
 }:
 
 buildDunePackage rec {
   pname = "riot";
-  version = "0.0.2";
+  version = "0.0.5";
 
   minimalOCamlVersion = "5.1";
 
   src = fetchurl {
     url = "https://github.com/leostera/riot/releases/download/${version}/riot-${version}.tbz";
-    hash = "sha256-ck/tr5o0nKF4WNgjPODHg1/tlaKv1JtuYgqYfIIZ78Q=";
+    hash = "sha256-Abe4LMxlaxK3MVlg2d8X60aCuPGvaOn+4zFx/uH5z4g=";
   };
 
   propagatedBuildInputs = [
     bigstringaf
     iomux
     ptime
+    telemetry
     uri
   ];
 
diff --git a/pkgs/development/ocaml-modules/telemetry/default.nix b/pkgs/development/ocaml-modules/telemetry/default.nix
new file mode 100644
index 000000000000..85d6e067f60f
--- /dev/null
+++ b/pkgs/development/ocaml-modules/telemetry/default.nix
@@ -0,0 +1,22 @@
+{ lib, buildDunePackage, fetchurl }:
+
+buildDunePackage rec {
+  pname = "telemetry";
+  version = "0.0.1";
+
+  minimalOCamlVersion = "4.12";
+
+  src = fetchurl {
+    url = "https://github.com/leostera/telemetry/releases/download/${version}/telemetry-${version}.tbz";
+    hash = "sha256-YEf7zC/F2zJBtQNfyJ2OznKmoFo1Ms9O2WgiOFkhp28=";
+  };
+
+  doCheck = true;
+
+  meta = {
+    description = "A lightweight library for dispatching and handling events, with a focus on metrics and instrumentation";
+    homepage = "https://github.com/leostera/telemetry";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.vbgl ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index e6f54a1401ba..f04dc00d0971 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -1733,6 +1733,8 @@ let
 
     telegraml = callPackage ../development/ocaml-modules/telegraml { };
 
+    telemetry = callPackage ../development/ocaml-modules/telemetry { };
+
     terminal = callPackage ../development/ocaml-modules/terminal { };
 
     terminal_size = callPackage ../development/ocaml-modules/terminal_size { };