diff --git a/dockerfiles/ubuntu/Dockerfile b/dockerfiles/ubuntu/Dockerfile
index e0225201..fee0c82f 100644
--- a/dockerfiles/ubuntu/Dockerfile
+++ b/dockerfiles/ubuntu/Dockerfile
@@ -40,6 +40,7 @@ RUN git config --global protocol.file.allow "always"
 ADD assets/ /opt/resource/
 RUN chmod +x /opt/resource/*
 
+ENV CXXFLAGS -DOPENSSL_API_COMPAT=0x30000000L
 ADD scripts/install_git_crypt.sh install_git_crypt.sh
 RUN ./install_git_crypt.sh && rm ./install_git_crypt.sh
 
diff --git a/scripts/install_git_crypt.sh b/scripts/install_git_crypt.sh
index aff1885d..5f5ec037 100755
--- a/scripts/install_git_crypt.sh
+++ b/scripts/install_git_crypt.sh
@@ -9,7 +9,7 @@ _main() {
   cd "$tmpdir"
   git clone https://github.com/AGWA/git-crypt.git
   cd git-crypt
-  git checkout tags/0.6.0
+  git checkout tags/0.7.0
   make
   make install
   cd ../..