diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0487abb8..9d87efac 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,7 +10,7 @@ env:
   OPENSSL3_VERSION: 3.1.2+quic
   BORINGSSL_VERSION: 6ca49385b168f47a50e7172d82a590b218f55e4d
   NGHTTP3_VERSION: v1.0.0
-  NGTCP2_VERSION: v1.0.0
+  NGTCP2_VERSION: v1.0.1
 
 jobs:
   build-cache:
diff --git a/README.rst b/README.rst
index 5d24c5ad..1934341b 100644
--- a/README.rst
+++ b/README.rst
@@ -366,7 +366,7 @@ Build ngtcp2:
 
 .. code-block:: text
 
-   $ git clone --depth 1 -b v1.0.0 https://github.com/ngtcp2/ngtcp2
+   $ git clone --depth 1 -b v1.0.1 https://github.com/ngtcp2/ngtcp2
    $ cd ngtcp2
    $ autoreconf -i
    $ ./configure --prefix=$PWD/build --enable-lib-only \
diff --git a/docker/Dockerfile b/docker/Dockerfile
index b0a43f14..e7b54967 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -24,7 +24,7 @@ RUN git clone --depth 1 -b v1.0.0 https://github.com/ngtcp2/nghttp3 && \
     cd .. && \
     rm -rf nghttp3
 
-RUN git clone --depth 1 -b v1.0.0 https://github.com/ngtcp2/ngtcp2 && \
+RUN git clone --depth 1 -b v1.0.1 https://github.com/ngtcp2/ngtcp2 && \
     cd ngtcp2 && \
     autoreconf -i && \
     ./configure --enable-lib-only \