diff --git a/.github/workflows/alpine_numpy2/Dockerfile.ci b/.github/workflows/alpine_numpy2/Dockerfile.ci
new file mode 100644
index 000000000000..4f3633508d04
--- /dev/null
+++ b/.github/workflows/alpine_numpy2/Dockerfile.ci
@@ -0,0 +1,79 @@
+FROM alpine:edge
+
+RUN apk add \
+    apache-arrow-dev \
+    armadillo-dev \
+    basisu-dev \
+    blosc-dev \
+    brunsli-dev \
+    ccache \
+    cfitsio-dev \
+    cmake \
+    curl-dev \
+    expat-dev \
+    freexl-dev \
+    gcc \
+    g++ \
+    geos-dev \
+    giflib-dev \
+    gnu-libiconv-dev \
+    hdf5-dev \
+    json-c-dev \
+    kealib-dev \
+    libaec-dev \
+    libarchive-dev \
+    libdeflate-dev \
+    libgeotiff-dev \
+    libheif-dev \
+    libjpeg-turbo-dev \
+    libjxl-dev \
+    libkml-dev \
+    libpng-dev \
+    libpq-dev \
+    librasterlite2-dev \
+    libspatialite-dev \
+    libtirpc-dev \
+    libwebp-dev \
+    libxml2-dev \
+    libxslt-dev \
+    linux-headers \
+    lz4-dev \
+    make \
+    mariadb-connector-c-dev \
+    netcdf-dev \
+    odbc-cpp-wrapper-dev \
+    ogdi-dev \
+    openexr-dev \
+    openjpeg-dev \
+    openssl-dev \
+    pcre2-dev \
+    podofo-dev \
+    poppler-dev \
+    proj-dev \
+    proj-util \
+    py3-pip \
+    py3-setuptools \
+    python3-dev \
+    qhull-dev \
+    sfcgal-dev \
+    snappy-dev \
+    sqlite-dev \
+    swig \
+    tiledb-dev \
+    tiff-dev \
+    unixodbc-dev \
+    xerces-c-dev \
+    xz-dev \
+    zlib-dev \
+    zstd-dev
+
+# Commenting out those packages to be sure to test numpy 2.0.0rc1
+#    py3-numpy \
+#    py3-numpy-dev \
+#    py3-pyarrow \
+#    py3-pyarrow-pyc \
+
+COPY requirements.txt /tmp/
+RUN python3 -m pip install --break-system-packages numpy==2.0.0rc1
+RUN python3 -m pip install --break-system-packages -U -r /tmp/requirements.txt
+
diff --git a/.github/workflows/alpine_numpy2/build.sh b/.github/workflows/alpine_numpy2/build.sh
new file mode 100755
index 000000000000..9cbdfc622841
--- /dev/null
+++ b/.github/workflows/alpine_numpy2/build.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+
+set -e
+
+cat << EOF > /tmp/foo.cpp
+#include <cstdio>
+extern "C" void DeclareDeferredFOO(void);
+void DeclareDeferredFOO()
+{
+    FILE* f = fopen("/tmp/DeclareDeferredFOO_has_been_run.bin", "wb");
+    if (f)
+      fclose(f);
+}
+EOF
+
+cmake ${GDAL_SOURCE_DIR:=..} \
+  -DCMAKE_BUILD_TYPE=Release \
+  -DCMAKE_UNITY_BUILD=ON \
+  -DUSE_CCACHE=ON \
+  -DCMAKE_INSTALL_PREFIX=/usr \
+  -DIconv_INCLUDE_DIR=/usr/include/gnu-libiconv \
+  -DIconv_LIBRARY=/usr/lib/libiconv.so \
+  -DADD_EXTERNAL_DEFERRED_PLUGIN_FOO=/tmp/foo.cpp \
+  -DCMAKE_C_FLAGS=-Werror -DCMAKE_CXX_FLAGS="-std=c++23 -Werror" -DWERROR_DEV_FLAG="-Werror=dev"
+make -j$(nproc)
+make -j$(nproc) install DESTDIR=/tmp/install-gdal
+
+# To check if DeclareDeferredFOO() is called by GDALAllRegister()
+apps/gdalinfo --version
+
+if test -f /tmp/DeclareDeferredFOO_has_been_run.bin; then
+  echo "DeclareDeferredFOO() has been run"
+else
+  echo "DeclareDeferredFOO() has NOT been run"
+  exit 1
+fi
diff --git a/.github/workflows/linux_build.yml b/.github/workflows/linux_build.yml
index 69f75d555f31..f9e150cd954a 100644
--- a/.github/workflows/linux_build.yml
+++ b/.github/workflows/linux_build.yml
@@ -65,6 +65,12 @@ jobs:
             build_script: build.sh
             os: ubuntu-22.04
 
+          - name: Alpine, numpy 2
+            id: alpine_numpy2
+            container: alpine_numpy2
+            build_script: build.sh
+            os: ubuntu-22.04
+
           - name: Alpine, gcc 32-bit
             id: alpine_32bit
             container: alpine_32bit