diff --git a/Dockerfile b/Dockerfile
index edaec3c..7632270 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -23,7 +23,7 @@ RUN set -x \
     # Compile from source code.
  && git clone --recursive https://github.com/JayDDee/cpuminer-opt.git /tmp/cpuminer \
  && cd /tmp/cpuminer \
- && git checkout v23.9 \
+ && git checkout v23.15 \
  && ./autogen.sh \
  && extracflags="$extracflags -Ofast -flto -fuse-linker-plugin -ftree-loop-if-convert-stores" \
  && CFLAGS="-O3 -march=native -Wall" ./configure --with-curl  \
diff --git a/build.sh b/build.sh
index 0433a4a..f8e6218 100755
--- a/build.sh
+++ b/build.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-version="23.9"
+version="23.15"
 image="cpuminer-opt"
 docker build . --tag docker.io/cniweb/$image:$version
 docker tag docker.io/cniweb/$image:$version docker.io/cniweb/$image:latest