diff --git a/docs/packages/mmcif.yaml b/docs/packages/mmcif.yaml
index 07c08621d7b..e5b94cd1764 100644
--- a/docs/packages/mmcif.yaml
+++ b/docs/packages/mmcif.yaml
@@ -18,3 +18,4 @@ versions:
   - filename: mmcif-1.1.1-cp314-cp314t-manylinux_2_39_riscv64.whl
     sha256: 694743bd4e50b39742aae0958728c802528b8af651d870db86fe1492646d55c4
     requires-python: '>=3.8'
+- version: 1.2.0
diff --git a/patches/mmcif/1.2.0/0001-build-compile-the-C-core-with-fPIC.patch b/patches/mmcif/1.2.0/0001-build-compile-the-C-core-with-fPIC.patch
new file mode 100644
index 00000000000..5c7da6570ef
--- /dev/null
+++ b/patches/mmcif/1.2.0/0001-build-compile-the-C-core-with-fPIC.patch
@@ -0,0 +1,39 @@
+From c4810cb4b5b938fd8c2f0bff467f1fbbd4d012ec Mon Sep 17 00:00:00 2001
+From: Ludovic Henry <git@ludovic.dev>
+Date: Thu, 10 Sep 2026 08:07:11 +0200
+Subject: [PATCH] build: compile the C++ core with -fPIC
+
+Upstream-Status: To upstream [not submitted; this port's automation may not open issues or PRs on repos other than riseproject-dev/python-wheels]
+
+CMAKE_C_FLAGS carries -fPIC but CMAKE_CXX_FLAGS does not, so the C++
+object files that make up mmciflib-all (linked into the pybind11
+shared module mmciflib.*.so) are compiled position-dependent. This
+goes unnoticed on x86_64/aarch64, but riscv64's binutils ld enforces
+PIC strictly for shared-object relocations and segfaults while
+generating the -flto link (an assertion failure in elfnn-riscv.c),
+after first reporting the underlying cause:
+
+    relocation R_RISCV_HI20 against `a local symbol' can not be used
+    when making a shared object; recompile with -fPIC
+
+Add -fPIC to CMAKE_CXX_FLAGS to match CMAKE_C_FLAGS.
+---
+ CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 35eeaca..6571ac5 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -60,7 +60,7 @@ if (NOT CONFIGURED_ONCE)
+     #set(CMAKE_CXX_FLAGS "${warnings} ${mydefines}  -fno-common -fvisibility=hidden -fvisibility-inlines-hidden -std=c++14  -flto "
+     #    CACHE STRING "Flags used by the compiler during all build types." FORCE)
+     #
+-    set(CMAKE_CXX_FLAGS "${warnings} ${mydefines}  -fno-common -fvisibility=hidden -fvisibility-inlines-hidden -std=c++11  -flto "
++    set(CMAKE_CXX_FLAGS "${warnings} ${mydefines}  -fno-common -fvisibility=hidden -fvisibility-inlines-hidden -std=c++11  -flto -fPIC "
+         CACHE STRING "Flags used by the compiler during all build types." FORCE)
+     #
+     set(CMAKE_C_FLAGS   "${warnings} ${mydefines}  -fPIC"
+-- 
+2.50.1 (Apple Git-155)
+