diff --git a/Dockerfile.linux b/Dockerfile.linux
index 2d1bba30..5d7ece4f 100644
--- a/Dockerfile.linux
+++ b/Dockerfile.linux
@@ -169,7 +169,27 @@ RUN wget https://www.openssl.org/source/openssl-1.1.1g.tar.gz && \
     tar -xzf openssl-1.1.1g.tar.gz && \
     rm openssl-1.1.1g.tar.gz && \
     cd openssl-1.1.1g && \
-    ./config no-asm no-shared no-zlib-dynamic --openssldir=/usr && \
+    ./config no-asm no-shared no-zlib-dynamic --prefix=/usr --openssldir=/usr && \
+    make -j$THREADS && \
+    make -j$THREADS install && \
+    rm -rf $(pwd)
+
+RUN wget https://github.com/libexpat/libexpat/releases/download/R_2_4_1/expat-2.4.1.tar.bz2 && \
+    echo "2f9b6a580b94577b150a7d5617ad4643a4301a6616ff459307df3e225bcfbf40 expat-2.4.1.tar.bz2" | sha256sum -c && \
+    tar -xf expat-2.4.1.tar.bz2 && \
+    rm expat-2.4.1.tar.bz2 && \
+    cd expat-2.4.1 && \
+    ./configure --enable-static --disable-shared --prefix=/usr && \
+    make -j$THREADS && \
+    make -j$THREADS install && \
+    rm -rf $(pwd)
+
+RUN wget https://www.nlnetlabs.nl/downloads/unbound/unbound-1.13.2.tar.gz && \
+    echo "0a13b547f3b92a026b5ebd0423f54c991e5718037fd9f72445817f6a040e1a83 unbound-1.13.2.tar.gz" | sha256sum -c && \
+    tar -xzf unbound-1.13.2.tar.gz && \
+    rm unbound-1.13.2.tar.gz && \
+    cd unbound-1.13.2 && \
+    ./configure --disable-shared --enable-static --without-pyunbound --with-libexpat=/usr --with-ssl=/usr --with-libevent=no --without-pythonmodule --disable-flto --with-pthreads --with-libunbound-only --with-pic && \
     make -j$THREADS && \
     make -j$THREADS install && \
     rm -rf $(pwd)