diff --git a/mongo-c-driver/riscv64.patch b/mongo-c-driver/riscv64.patch
new file mode 100644
index 000000000..6c09eb18f
--- /dev/null
+++ b/mongo-c-driver/riscv64.patch
@@ -0,0 +1,22 @@
+--- PKGBUILD
++++ PKGBUILD
+@@ -33,6 +33,11 @@ replaces=(
+ source=("https://github.com/mongodb/mongo-c-driver/archive/$pkgver/$pkgname-$pkgver.tar.gz")
+ sha256sums=('507414795dfb24ddf1a418b155b57459d8cea1191c7f0fcd8b826acf5400343c')
+ 
++prepare() {
++  cd $pkgname-$pkgver
++  sed -i 's/TIMEOUT 45/TIMEOUT 3600/g' build/cmake/LoadTests.cmake
++}
++
+ build() {
+   cd $pkgname-$pkgver
+   # ENABLE_STATIC=ON is required to build tests.
+@@ -48,6 +53,7 @@ build() {
+ 
+ check() {
+   cd $pkgname-$pkgver
++  CFLAGS+=' -mcmodel=medany'
+   cmake --build build --target check
+   export MONGOC_TEST_OFFLINE=ON
+   export MONGOC_TEST_SKIP_LIVE=ON