diff --git a/build/pkgs/m4ri/checksums.ini b/build/pkgs/m4ri/checksums.ini
index d280c71d682..d23369c0065 100644
--- a/build/pkgs/m4ri/checksums.ini
+++ b/build/pkgs/m4ri/checksums.ini
@@ -1,4 +1,4 @@
 tarball=m4ri-VERSION.tar.gz
-sha1=a2c61450c01319fabb777a8e5e8dfe25cb5f2cb8
-sha256=b4098db651483c0e1506c16f79091eba02f41dadbacf1bb25be8eb97e5515f96
+sha1=3a38a0d1e7f18123f38899d32498e604fca140f7
+sha256=7b195a4d88fa827b9ec6d087c3cac739ab6e5100da05faaed3a1d2c20ca3a930
 upstream_url=https://github.com/malb/m4ri/releases/download/VERSION/m4ri-VERSION.tar.gz
diff --git a/build/pkgs/m4ri/package-version.txt b/build/pkgs/m4ri/package-version.txt
index 6f429ff09a0..47f4b89c615 100644
--- a/build/pkgs/m4ri/package-version.txt
+++ b/build/pkgs/m4ri/package-version.txt
@@ -1 +1 @@
-20250128
+20251207
diff --git a/build/pkgs/m4ri/patches/b178ed36bdd841a76b6595edb77631886e099406.patch b/build/pkgs/m4ri/patches/b178ed36bdd841a76b6595edb77631886e099406.patch
deleted file mode 100644
index 6ad64573693..00000000000
--- a/build/pkgs/m4ri/patches/b178ed36bdd841a76b6595edb77631886e099406.patch
+++ /dev/null
@@ -1,45 +0,0 @@
-From b178ed36bdd841a76b6595edb77631886e099406 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Gonzalo=20Tornar=C3=ADa?= <tornaria@cmat.edu.uy>
-Date: Mon, 3 Feb 2025 17:19:37 -0300
-Subject: [PATCH] Fix overflows in `mzd_init()`
-
----
- m4ri/mmc.h | 4 ++++
- m4ri/mzd.c | 5 ++---
- 2 files changed, 6 insertions(+), 3 deletions(-)
-
-diff --git a/m4ri/mmc.h b/m4ri/mmc.h
-index e6db4ca..3e97391 100644
---- a/m4ri/mmc.h
-+++ b/m4ri/mmc.h
-@@ -72,6 +72,10 @@ typedef struct _mm_block {
-  * \return Pointer to allocated memory block.
-  */
- static inline void *m4ri_mmc_calloc(size_t count, size_t size) {
-+  if (size && count > SIZE_MAX/size) {
-+      m4ri_die("m4ri_mmc_calloc: overflow in multiplication\n");
-+      return NULL; /* unreachable */
-+  }
-   size_t total_size = count * size;
-   void *ret         = m4ri_mmc_malloc(total_size);
-   memset((char *)ret, 0, total_size);
-diff --git a/m4ri/mzd.c b/m4ri/mzd.c
-index ba04b7c..ac62c5c 100644
---- a/m4ri/mzd.c
-+++ b/m4ri/mzd.c
-@@ -144,13 +144,12 @@ mzd_t *mzd_init(rci_t r, rci_t c) {
-   mzd_t *A = mzd_t_malloc();
-   A->nrows         = r;
-   A->ncols         = c;
--  A->width         = (c + m4ri_radix - 1) / m4ri_radix;
-+  A->width         = c > 0 ? (c - 1) / m4ri_radix + 1 : 0;
-   A->rowstride     = ((A->width & 1) == 0) ? A->width : A->width + 1;
-   A->high_bitmask  = __M4RI_LEFT_BITMASK(c % m4ri_radix);
-   A->flags         = (A->high_bitmask != m4ri_ffff) ? mzd_flag_nonzero_excess : 0;
-   if (r && c) {
--    size_t block_words = r * A->rowstride;
--    A->data = m4ri_mmc_calloc(block_words, sizeof(word));
-+    A->data = m4ri_mmc_calloc(r, sizeof(word) * A->rowstride);
-   } else {
-     A->data = NULL;
-   }