diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index d70bd1c608..2a5056eb94 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -44,7 +44,7 @@ env:
   bearssl-version: 0.6
   libressl-version: v3.7.3
   mbedtls-version: v3.5.0
-  mod_h2-version: v2.0.26
+  mod_h2-version: v2.0.27
   msh3-version: v0.6.0
   openssl3-version: openssl-3.1.3
   quictls-version: 3.1.4+quic
diff --git a/.github/workflows/ngtcp2-linux.yml b/.github/workflows/ngtcp2-linux.yml
index 19172b48fd..c0caf531b0 100644
--- a/.github/workflows/ngtcp2-linux.yml
+++ b/.github/workflows/ngtcp2-linux.yml
@@ -49,10 +49,10 @@ env:
   quictls-version: 3.1.4+quic
   gnutls-version: 3.8.3
   wolfssl-version: master
-  nghttp3-version: v1.1.0
-  ngtcp2-version: v1.2.0
-  nghttp2-version: v1.59.0
-  mod_h2-version: v2.0.26
+  nghttp3-version: v1.2.0
+  ngtcp2-version: v1.4.0
+  nghttp2-version: v1.61.0
+  mod_h2-version: v2.0.27
 
 jobs:
   autotools:
@@ -185,6 +185,7 @@ jobs:
           cd $HOME
           git clone --quiet --depth=1 -b ${{ env.nghttp3-version }} https://github.com/ngtcp2/nghttp3
           cd nghttp3
+          git submodule update --init
           autoreconf -fi
           ./configure --prefix=$HOME/nghttpx PKG_CONFIG_PATH="$HOME/nghttpx/lib/pkgconfig" --enable-lib-only
           make
diff --git a/.github/workflows/osslq-linux.yml b/.github/workflows/osslq-linux.yml
index a15e28ccec..38ea8acaba 100644
--- a/.github/workflows/osslq-linux.yml
+++ b/.github/workflows/osslq-linux.yml
@@ -48,10 +48,10 @@ env:
   MAKEFLAGS: -j 3
   openssl3-version: openssl-3.2.0
   quictls-version: 3.1.4+quic
-  nghttp3-version: v1.1.0
-  ngtcp2-version: v1.2.0
-  nghttp2-version: v1.59.0
-  mod_h2-version: v2.0.26
+  nghttp3-version: v1.2.0
+  ngtcp2-version: v1.4.0
+  nghttp2-version: v1.61.0
+  mod_h2-version: v2.0.27
 
 jobs:
   autotools:
@@ -147,6 +147,7 @@ jobs:
           cd $HOME
           git clone --quiet --depth=1 -b ${{ env.nghttp3-version }} https://github.com/ngtcp2/nghttp3
           cd nghttp3
+          git submodule update --init
           autoreconf -fi
           ./configure --prefix=$HOME/nghttpx PKG_CONFIG_PATH="$HOME/nghttpx/lib/pkgconfig" --enable-lib-only
           make
diff --git a/.github/workflows/quiche-linux.yml b/.github/workflows/quiche-linux.yml
index 40fc4d580d..17e98f9677 100644
--- a/.github/workflows/quiche-linux.yml
+++ b/.github/workflows/quiche-linux.yml
@@ -47,11 +47,11 @@ permissions: {}
 env:
   MAKEFLAGS: -j 3
   openssl-version: 3.1.4+quic
-  nghttp3-version: v1.1.0
-  ngtcp2-version: v1.2.0
-  nghttp2-version: v1.59.0
+  nghttp3-version: v1.2.0
+  ngtcp2-version: v1.4.0
+  nghttp2-version: v1.61.0
   quiche-version: 0.20.0
-  mod_h2-version: v2.0.26
+  mod_h2-version: v2.0.27
 
 jobs:
   autotools:
@@ -102,6 +102,7 @@ jobs:
         run: |
           git clone --quiet --depth=1 -b ${{ env.nghttp3-version }} https://github.com/ngtcp2/nghttp3
           cd nghttp3
+          git submodule update --init
           autoreconf -fi
           ./configure --prefix=$HOME/nghttpx PKG_CONFIG_PATH="$HOME/nghttpx/lib/pkgconfig" --enable-lib-only
           make install