diff --git a/pkgs/development/ocaml-modules/phylogenetics/default.nix b/pkgs/development/ocaml-modules/phylogenetics/default.nix
index 1a23a4d3e13..1cb348a4165 100644
--- a/pkgs/development/ocaml-modules/phylogenetics/default.nix
+++ b/pkgs/development/ocaml-modules/phylogenetics/default.nix
@@ -11,7 +11,7 @@
 , lacaml
 , menhir
 , menhirLib
-, printbox
+, printbox-text
 }:
 
 buildDunePackage rec {
@@ -25,6 +25,11 @@ buildDunePackage rec {
     sha256 = "sha256:0knfh2s0jfnsc0vsq5yw5xla7m7i98xd0qv512dyh3jhkh7m00l9";
   };
 
+  # Ensure compatibility with printbox ≥ 0.6
+  preConfigure = ''
+    substituteInPlace lib/dune --replace printbox printbox-text
+  '';
+
   minimalOCamlVersion = "4.08";
 
   checkInputs = [ alcotest bppsuite ];
@@ -37,7 +42,7 @@ buildDunePackage rec {
     lacaml
     menhirLib
     ppx_deriving
-    printbox
+    printbox-text
   ];
 
   doCheck = true;
diff --git a/pkgs/development/ocaml-modules/printbox/default.nix b/pkgs/development/ocaml-modules/printbox/default.nix
index 04361de7222..b42df087a9a 100644
--- a/pkgs/development/ocaml-modules/printbox/default.nix
+++ b/pkgs/development/ocaml-modules/printbox/default.nix
@@ -1,21 +1,21 @@
-{ lib, fetchFromGitHub, buildDunePackage, ocaml, uucp, uutf, mdx }:
+{ lib, fetchFromGitHub, buildDunePackage, ocaml, mdx }:
 
 buildDunePackage rec {
   pname = "printbox";
-  version = "0.5";
+  version = "0.6";
 
   useDune2 = true;
 
-  minimumOCamlVersion = "4.03";
+  minimalOCamlVersion = "4.03";
 
   src = fetchFromGitHub {
     owner = "c-cube";
     repo = pname;
-    rev = version;
-    sha256 = "099yxpp7d9bms6dwzp9im7dv1qb801hg5rx6awpx3rpfl4cvqfn2";
+    rev = "v${version}";
+    sha256 = "sha256:0vqp8j1vp8h8par699nnh31hnikzh6pqn07lqyxw65axqy3sc9dp";
   };
 
-  checkInputs = [ uucp uutf mdx.bin ];
+  checkInputs = [ mdx.bin ];
 
   # mdx is not available for OCaml < 4.07
   doCheck = lib.versionAtLeast ocaml.version "4.07";
diff --git a/pkgs/development/ocaml-modules/printbox/text.nix b/pkgs/development/ocaml-modules/printbox/text.nix
new file mode 100644
index 00000000000..cc0aa5691de
--- /dev/null
+++ b/pkgs/development/ocaml-modules/printbox/text.nix
@@ -0,0 +1,14 @@
+{ buildDunePackage, printbox, uucp, uutf, mdx }:
+
+buildDunePackage {
+  pname = "printbox-text";
+  inherit (printbox) src version useDune2 doCheck;
+
+  propagatedBuildInputs = [ printbox uucp uutf ];
+
+  checkInputs = [ mdx.bin ];
+
+  meta = printbox.meta // {
+    description = "Text renderer for printbox, using unicode edges";
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index f3773c90693..671b05cccfb 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -1179,6 +1179,8 @@ let
 
     printbox = callPackage ../development/ocaml-modules/printbox { };
 
+    printbox-text = callPackage ../development/ocaml-modules/printbox/text.nix { };
+
     process = callPackage ../development/ocaml-modules/process { };
 
     prof_spacetime = callPackage ../development/ocaml-modules/prof_spacetime { };