diff --git a/docker/Dockerfile b/docker/Dockerfile
index abe659f4..14762ae8 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -15,7 +15,7 @@ RUN git clone --depth 1 -b OpenSSL_1_1_1o+quic https://github.com/quictls/openss
     cd .. && \
     rm -rf openssl
 
-RUN git clone --depth 1 -b v0.2.0 https://github.com/ngtcp2/nghttp3 && \
+RUN git clone --depth 1 -b v0.4.0 https://github.com/ngtcp2/nghttp3 && \
     cd nghttp3 && \
     autoreconf -i && \
     ./configure --enable-lib-only && \
@@ -24,7 +24,7 @@ RUN git clone --depth 1 -b v0.2.0 https://github.com/ngtcp2/nghttp3 && \
     cd .. && \
     rm -rf nghttp3
 
-RUN git clone --depth 1 -b v0.2.1 https://github.com/ngtcp2/ngtcp2 && \
+RUN git clone --depth 1 -b v0.4.0 https://github.com/ngtcp2/ngtcp2 && \
     cd ngtcp2 && \
     autoreconf -i && \
     ./configure --enable-lib-only \