diff --git a/pkgs/by-name/ma/manifold/package.nix b/pkgs/by-name/ma/manifold/package.nix
index 4a0edc05a35e..296953af1209 100644
--- a/pkgs/by-name/ma/manifold/package.nix
+++ b/pkgs/by-name/ma/manifold/package.nix
@@ -11,13 +11,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "manifold";
-  version = "3.1.0";
+  version = "3.1.1";
 
   src = fetchFromGitHub {
     owner = "elalish";
     repo = "manifold";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-GymlaLs6LIG/252suYnFrgeT1jwrYeIXMo++LCjFHD4=";
+    hash = "sha256-dCCTjWRjXSyuEDxGI9ZS2UTmLdZVSmDOmHFnhox3N+4=";
   };
 
   nativeBuildInputs = [ cmake ];
diff --git a/pkgs/development/python-modules/manifold3d/default.nix b/pkgs/development/python-modules/manifold3d/default.nix
index 6b089117fcdb..805d35f1d78e 100644
--- a/pkgs/development/python-modules/manifold3d/default.nix
+++ b/pkgs/development/python-modules/manifold3d/default.nix
@@ -17,14 +17,14 @@
 
 buildPythonPackage rec {
   pname = "manifold3d";
-  version = "3.1.0";
+  version = "3.1.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "elalish";
     repo = "manifold";
     tag = "v${version}";
-    hash = "sha256-GymlaLs6LIG/252suYnFrgeT1jwrYeIXMo++LCjFHD4=";
+    hash = "sha256-dCCTjWRjXSyuEDxGI9ZS2UTmLdZVSmDOmHFnhox3N+4=";
   };
 
   dontUseCmakeConfigure = true;