diff --git a/pkgs/development/libraries/science/math/or-tools/0001-Do-not-try-to-copy-pybind11_abseil-status-extension-.patch b/pkgs/development/libraries/science/math/or-tools/0001-Do-not-try-to-copy-pybind11_abseil-status-extension-.patch
new file mode 100644
index 000000000000..b3529481eb8e
--- /dev/null
+++ b/pkgs/development/libraries/science/math/or-tools/0001-Do-not-try-to-copy-pybind11_abseil-status-extension-.patch
@@ -0,0 +1,41 @@
+--- a/cmake/python.cmake
++++ b/cmake/python.cmake
+@@ -322,7 +322,6 @@
+ file(GENERATE OUTPUT ${PYTHON_PROJECT_DIR}/linear_solver/__init__.py CONTENT "")
+ file(GENERATE OUTPUT ${PYTHON_PROJECT_DIR}/linear_solver/python/__init__.py CONTENT "")
+ if(BUILD_MATH_OPT)
+-  file(GENERATE OUTPUT ${PYTHON_PROJECT_DIR}/../pybind11_abseil/__init__.py CONTENT "")
+   file(GENERATE OUTPUT ${PYTHON_PROJECT_DIR}/math_opt/__init__.py CONTENT "")
+   file(GENERATE OUTPUT ${PYTHON_PROJECT_DIR}/math_opt/core/__init__.py CONTENT "")
+   file(GENERATE OUTPUT ${PYTHON_PROJECT_DIR}/math_opt/core/python/__init__.py CONTENT "")
+@@ -635,9 +634,6 @@
+   COMMAND ${CMAKE_COMMAND} -E
+    $<IF:$<BOOL:${BUILD_MATH_OPT}>,copy,true>
+    $<TARGET_FILE:math_opt_pybind11> ${PYTHON_PROJECT}/math_opt/core/python
+-  COMMAND ${CMAKE_COMMAND} -E
+-   $<IF:$<BOOL:${BUILD_MATH_OPT}>,copy,true>
+-   $<TARGET_FILE:status_py_extension_stub> ${PYTHON_PROJECT}/../pybind11_abseil
+   COMMAND ${CMAKE_COMMAND} -E
+    $<IF:$<TARGET_EXISTS:pdlp_pybind11>,copy,true>
+    $<$<TARGET_EXISTS:pdlp_pybind11>:$<TARGET_FILE:pdlp_pybind11>> ${PYTHON_PROJECT}/pdlp/python
+@@ -696,7 +692,6 @@
+   COMMAND ${stubgen_EXECUTABLE} -p ortools.constraint_solver.pywrapcp --output .
+   COMMAND ${stubgen_EXECUTABLE} -p ortools.linear_solver.pywraplp --output .
+   COMMAND ${stubgen_EXECUTABLE} -p ortools.linear_solver.python.model_builder_helper --output .
+-  COMMAND ${stubgen_EXECUTABLE} -p pybind11_abseil.status --output .
+   COMMAND ${stubgen_EXECUTABLE} -p ortools.math_opt.core.python.solver --output .
+   COMMAND ${stubgen_EXECUTABLE} -p ortools.pdlp.python.pdlp --output .
+   COMMAND ${stubgen_EXECUTABLE} -p ortools.sat.python.cp_model_helper --output .
+--- a/ortools/python/setup.py.in
++++ b/ortools/python/setup.py.in
+@@ -83,10 +83,6 @@
+             '*.pyi',
+             'py.typed'
+         ],
+-        'pybind11_abseil':[
+-            '$<TARGET_FILE_NAME:status_py_extension_stub>',
+-            '*.pyi'
+-        ],
+         '@PYTHON_PROJECT@.math_opt':['*.pyi'],
+         '@PYTHON_PROJECT@.math_opt.core.python':[
+             '$<TARGET_FILE_NAME:math_opt_pybind11>',
diff --git a/pkgs/development/libraries/science/math/or-tools/default.nix b/pkgs/development/libraries/science/math/or-tools/default.nix
index 998ae934a397..4457003bbadf 100644
--- a/pkgs/development/libraries/science/math/or-tools/default.nix
+++ b/pkgs/development/libraries/science/math/or-tools/default.nix
@@ -23,21 +23,18 @@
 
 stdenv.mkDerivation rec {
   pname = "or-tools";
-  version = "9.11";
+  version = "9.12";
 
   src = fetchFromGitHub {
     owner = "google";
     repo = "or-tools";
     tag = "v${version}";
-    hash = "sha256-aRhUAs9Otvra7VPJvrf0fhDCGpYhOw1//BC4dFJ7/xI=";
+    hash = "sha256-5rFeAK51+BfjIyu/5f5ptaKMD7Hd20yHa2Vj3O3PkLU=";
   };
 
   patches = [
-    (fetchpatch {
-      name = "0001-Do-not-try-to-copy-pybind11_abseil-status-extension-.patch";
-      url = "https://build.opensuse.org/public/source/science/google-or-tools/0001-Do-not-try-to-copy-pybind11_abseil-status-extension-.patch?rev=19";
-      hash = "sha256-QHQ9E3mhTznJVKB+nP/9jct3uz+SPcOZ7w5tjOQ8iuk=";
-    })
+    # Rebased from https://build.opensuse.org/public/source/science/google-or-tools/0001-Do-not-try-to-copy-pybind11_abseil-status-extension-.patch?rev=19
+    ./0001-Do-not-try-to-copy-pybind11_abseil-status-extension-.patch
     (fetchpatch {
       name = "0001-Revert-python-Fix-python-install-on-windows-breaks-L.patch";
       url = "https://build.opensuse.org/public/source/science/google-or-tools/0001-Revert-python-Fix-python-install-on-windows-breaks-L.patch?rev=19";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 22d0b9ba20f3..174a802f54fc 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -16515,15 +16515,10 @@ with pkgs;
   or-tools = callPackage ../development/libraries/science/math/or-tools {
     inherit (darwin) DarwinTools;
     python = python3;
-    protobuf = protobuf_26.override {
+    protobuf = protobuf_29.override {
       abseil-cpp = abseil-cpp_202407;
     };
-    # or-tools builds with -std=c++17, so abseil-cpp must
-    # also be built that way
-    abseil-cpp = abseil-cpp_202407.override {
-      static = true;
-      cxxStandard = "17";
-    };
+    abseil-cpp = abseil-cpp_202407;
   };
 
   p4est-sc = callPackage ../development/libraries/science/math/p4est-sc {