diff --git a/pkgs/applications/misc/prusa-slicer/default.nix b/pkgs/applications/misc/prusa-slicer/default.nix
index eb58f2f0c2f6..ce1b3521d046 100644
--- a/pkgs/applications/misc/prusa-slicer/default.nix
+++ b/pkgs/applications/misc/prusa-slicer/default.nix
@@ -7,6 +7,7 @@
 , pkg-config
 , wrapGAppsHook3
 , boost
+, boost183
 , cereal
 , cgal
 , curl
@@ -25,7 +26,7 @@
 , mpfr
 , nanosvg
 , nlopt
-, opencascade-occt_7_6
+, opencascade-occt_7_6_1
 , openvdb
 , pcre
 , qhull
@@ -35,11 +36,12 @@
 , libbgcode
 , heatshrink
 , catch2
+, webkitgtk_4_0
 , withSystemd ? lib.meta.availableOn stdenv.hostPlatform systemd, systemd
 , wxGTK-override ? null
+, opencascade-override ? null
 }:
 let
-  opencascade-occt = opencascade-occt_7_6;
   wxGTK-prusa = wxGTK32.overrideAttrs (old: rec {
     pname = "wxwidgets-prusa3d-patched";
     version = "3.2.0";
@@ -66,34 +68,35 @@ let
   });
   openvdb_tbb_2021_8 = openvdb.override { tbb = tbb_2021_11; };
   wxGTK-override' = if wxGTK-override == null then wxGTK-prusa else wxGTK-override;
+  opencascade-override' = if opencascade-override == null then opencascade-occt_7_6_1 else opencascade-override;
 
   patches = [
-    (fetchpatch {
-      url = "https://raw.githubusercontent.com/gentoo/gentoo/master/media-gfx/prusaslicer/files/prusaslicer-2.8.0-missing-includes.patch";
-      hash = "sha256-/R9jv9zSP1lDW6IltZ8V06xyLdxfaYrk3zD6JRFUxHg=";
-    })
-    (fetchpatch {
-      url = "https://raw.githubusercontent.com/gentoo/gentoo/master/media-gfx/prusaslicer/files/prusaslicer-2.8.0-fixed-linking.patch";
-      hash = "sha256-G1JNdVH+goBelag9aX0NctHFVqtoYFnqjwK/43FVgvM=";
-    })
   ];
+
+  # Build requires at least Boost v1.83.  If the mainline package satisfies
+  # that, just use the mainline package, otherwise use an explicitly versioned
+  # package.
+  boost183OrBetter =
+    if lib.versionAtLeast boost.version "1.83"
+    then boost
+    else boost183;
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "prusa-slicer";
-  version = "2.8.0";
+  version = "2.9.0";
   inherit patches;
 
   src = fetchFromGitHub {
     owner = "prusa3d";
     repo = "PrusaSlicer";
-    hash = "sha256-A/uxNIEXCchLw3t5erWdhqFAeh6nudcMfASi+RoJkFg=";
+    hash = "sha256-6BrmTNIiu6oI/CbKPKoFQIh1aHEVfJPIkxomQou0xKk=";
     rev = "version_${finalAttrs.version}";
   };
 
   # required for GCC 14
   # (not applicable to super-slicer fork)
   postPatch = lib.optionalString (finalAttrs.pname == "prusa-slicer") ''
-    substituteInPlace src/libslic3r/Arrange/Core/DataStoreTraits.hpp \
+    substituteInPlace src/slic3r-arrange/include/arrange/DataStoreTraits.hpp \
       --replace-fail \
       "WritableDataStoreTraits<ArrItem>::template set" \
       "WritableDataStoreTraits<ArrItem>::set"
@@ -108,7 +111,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   buildInputs = [
     binutils
-    boost
+    boost183OrBetter
     cereal
     cgal
     curl
@@ -126,7 +129,7 @@ stdenv.mkDerivation (finalAttrs: {
     mpfr
     nanosvg-fltk
     nlopt
-    opencascade-occt
+    opencascade-override'
     openvdb_tbb_2021_8
     pcre
     qhull
@@ -136,6 +139,7 @@ stdenv.mkDerivation (finalAttrs: {
     libbgcode
     heatshrink
     catch2
+    webkitgtk_4_0
   ] ++ lib.optionals withSystemd [
     systemd
   ] ++ lib.optionals stdenv.hostPlatform.isDarwin [
@@ -185,6 +189,7 @@ stdenv.mkDerivation (finalAttrs: {
     "-DSLIC3R_STATIC=0"
     "-DSLIC3R_FHS=1"
     "-DSLIC3R_GTK=3"
+    "-DCMAKE_CXX_FLAGS=-DBOOST_LOG_DYN_LINK"
   ];
 
   postInstall = ''
diff --git a/pkgs/applications/misc/prusa-slicer/super-slicer.nix b/pkgs/applications/misc/prusa-slicer/super-slicer.nix
index 268e571b87d4..27bafc26db90 100644
--- a/pkgs/applications/misc/prusa-slicer/super-slicer.nix
+++ b/pkgs/applications/misc/prusa-slicer/super-slicer.nix
@@ -6,6 +6,7 @@
   wxGTK31,
   prusa-slicer,
   libspnav,
+  opencascade-occt_7_6,
 }:
 let
   appname = "SuperSlicer";
@@ -59,7 +60,7 @@ let
       # - wxScintilla is not used on macOS
       # - Partially applied upstream changes cause a bug when trying to link against a nonexistent libexpat
       postPatch =
-        super.postPatch
+        (super.postPatch or "")
         + ''
           substituteInPlace src/CMakeLists.txt \
             --replace "scintilla" "" \
@@ -125,9 +126,12 @@ let
       fetchSubmodules = true;
     };
   });
-  prusa-slicer-wxGTK-override = prusa-slicer.override { wxGTK-override = wxGTK31-prusa; };
+  prusa-slicer-deps-override = prusa-slicer.override {
+    wxGTK-override = wxGTK31-prusa;
+    opencascade-override = opencascade-occt_7_6;
+  };
   allVersions = builtins.mapAttrs (
-    _name: version: (prusa-slicer-wxGTK-override.overrideAttrs (override version))
+    _name: version: (prusa-slicer-deps-override.overrideAttrs (override version))
   ) versions;
 in
 allVersions.stable
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 0455a2e6c269..753cd1580d6d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -10231,6 +10231,17 @@ with pkgs;
     ];
   };
 
+  opencascade-occt_7_6_1 = opencascade-occt.overrideAttrs {
+    pname = "opencascade-occt";
+    version = "7.6.1";
+    src = fetchFromGitHub {
+      owner = "Open-Cascade-SAS";
+      repo = "OCCT";
+      rev = "V7_6_1";
+      sha256 = "sha256-C02P3D363UwF0NM6R4D4c6yE5ZZxCcu5CpUaoTOxh7E=";
+    };
+  };
+
   opencsg = callPackage ../development/libraries/opencsg {
     inherit (qt5) qmake;
     inherit (darwin.apple_sdk.frameworks) GLUT;