diff --git a/pkgs/development/ocaml-modules/tsdl-image/default.nix b/pkgs/development/ocaml-modules/tsdl-image/default.nix
index d4eaaae65caa..3b0895b7b2f6 100644
--- a/pkgs/development/ocaml-modules/tsdl-image/default.nix
+++ b/pkgs/development/ocaml-modules/tsdl-image/default.nix
@@ -9,13 +9,15 @@
 
 buildDunePackage rec {
   pname = "tsdl-image";
-  version = "0.3.2";
+  version = "0.5";
+
+  duneVersion = "3";
 
   src = fetchFromGitHub {
     owner = "sanette";
     repo = pname;
     rev = version;
-    sha256 = "sha256-u6VYAwq+2oLn2Kw1+KQRVPswAqeKDSAaPfGLPrzn30s=";
+    hash = "sha256-khLhVJuiLNNWw76gTeg4W32v5XbkwAg11bIOWl67u2k=";
   };
 
   buildInputs = [
diff --git a/pkgs/development/ocaml-modules/tsdl-mixer/default.nix b/pkgs/development/ocaml-modules/tsdl-mixer/default.nix
index 24043ef4391e..d2721c5398e2 100644
--- a/pkgs/development/ocaml-modules/tsdl-mixer/default.nix
+++ b/pkgs/development/ocaml-modules/tsdl-mixer/default.nix
@@ -9,13 +9,15 @@
 
 buildDunePackage rec {
   pname = "tsdl-mixer";
-  version = "0.3.2";
+  version = "0.5";
+
+  duneVersion = "3";
 
   src = fetchFromGitHub {
     owner = "sanette";
     repo = pname;
     rev = version;
-    sha256 = "sha256-UDRhwnanrn87/PYVnacur1z/LsKuUu2G+0QQXjTw/IE=";
+    hash = "sha256-HGtO5iO3lxuVa707MDIhw0pgDZLHt9qY+Rd24sFkags=";
   };
 
   buildInputs = [
diff --git a/pkgs/development/ocaml-modules/tsdl-ttf/default.nix b/pkgs/development/ocaml-modules/tsdl-ttf/default.nix
index 0ff1963fcaf0..93bee8f10156 100644
--- a/pkgs/development/ocaml-modules/tsdl-ttf/default.nix
+++ b/pkgs/development/ocaml-modules/tsdl-ttf/default.nix
@@ -9,13 +9,15 @@
 
 buildDunePackage rec {
   pname = "tsdl-ttf";
-  version = "0.3.2";
+  version = "0.5";
+
+  duneVersion = "3";
 
   src = fetchFromGitHub {
     owner = "sanette";
     repo = pname;
     rev = version;
-    sha256 = "sha256-COBLF9K8thRROJJGeg4wxqrjB3aBa4CGYkf8HdAQ2o0";
+    hash = "sha256-ai9ChsA3HZzTxT9AuHsY1UIA2Q3U3CcOA7jRSG4MDsQ=";
   };
 
   buildInputs = [
diff --git a/pkgs/development/ocaml-modules/tsdl/default.nix b/pkgs/development/ocaml-modules/tsdl/default.nix
index 354a8ca2098a..14c29f3daee0 100644
--- a/pkgs/development/ocaml-modules/tsdl/default.nix
+++ b/pkgs/development/ocaml-modules/tsdl/default.nix
@@ -7,16 +7,17 @@ else
 
 let
   pname = "tsdl";
-  version = "0.9.9";
+  version = "1.0.0";
   webpage = "https://erratique.ch/software/${pname}";
 in
 
 stdenv.mkDerivation {
-  name = "ocaml${ocaml.version}-${pname}-${version}";
+  pname = "ocaml${ocaml.version}-${pname}";
+  inherit version;
 
   src = fetchurl {
     url = "${webpage}/releases/${pname}-${version}.tbz";
-    sha256 = "sha256-GqFz+bYG2ESkAEJyP8DKud4JFfU5MGLulzJa5Z4sptQ=";
+    hash = "sha256-XdgzCj9Uqplt/8Jk8rSFaQf8zu+9SZa8b9ZIlW/gjyE=";
   };
 
   strictDeps = true;