diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index c12c335019..2fc33e89c6 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -65,7 +65,7 @@ jobs:
       name: 'install nghttp3'
 
     - run: |
-        git clone --depth=1 -b v0.12.1 https://github.com/ngtcp2/ngtcp2
+        git clone --depth=1 -b v0.13.1 https://github.com/ngtcp2/ngtcp2
         cd ngtcp2
         autoreconf -fi
         ./configure ${{ matrix.build.ngtcp2-configure }} --with-openssl
@@ -73,7 +73,7 @@ jobs:
       name: 'install ngtcp2'
 
     - run: |
-        git clone --depth=1 -b v1.51.0 https://github.com/nghttp2/nghttp2
+        git clone --depth=1 -b v1.52.0 https://github.com/nghttp2/nghttp2
         cd nghttp2
         autoreconf -fi
         ./configure --prefix=$HOME/all PKG_CONFIG_PATH="$HOME/all/lib/pkgconfig" --enable-http3