diff --git a/matrix/Dockerfile b/matrix/Dockerfile
index ff15c3d..5c9c869 100644
--- a/matrix/Dockerfile
+++ b/matrix/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM rust:1.79-bookworm AS builder
+FROM rust:1.91-bookworm AS builder
 
 WORKDIR /app