diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index b0eebcc1ca..74d2df8f2f 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -153,10 +153,12 @@ jobs:
               https://github.com/openresty/openresty-deps-prebuild/releases/download/v20230902/drizzle7-$DRIZZLE_VER.tar.gz
           fi
           wget https://github.com/openresty/openresty-deps-prebuild/releases/download/v20230902/boringssl-20230902-x64-focal.tar.gz
-          wget https://github.com/openresty/openresty-deps-prebuild/releases/download/v20230902/curl-h3-x64-focal.tar.gz
+          wget https://github.com/stunnel/static-curl/releases/download/8.20.0/curl-linux-x86_64-glibc-8.20.0.tar.xz
 
-      - name: Install curl-h3
-        run: sudo tar -C / -xf curl-h3-x64-focal.tar.gz
+      - name: Install HTTP/3-capable curl
+        run: |
+          sudo mkdir -p /opt/curl/bin
+          sudo tar -C /opt/curl/bin -xf curl-linux-x86_64-glibc-8.20.0.tar.xz curl
 
       - name: Start memcached (native, UDP enabled)
         run: |
@@ -239,7 +241,7 @@ jobs:
       - name: Build nginx
         run: |
           export LD_LIBRARY_PATH=$LUAJIT_LIB:$LD_LIBRARY_PATH
-          export PATH=$PWD/work/nginx/sbin:$PWD/openresty-devel-utils:/opt/curl-h3/bin:$PATH
+          export PATH=$PWD/work/nginx/sbin:$PWD/openresty-devel-utils:/opt/curl/bin:$PATH
           export NGX_BUILD_CC=$CC
           sh util/build-without-ssl.sh ${{ matrix.NGINX_VERSION }} > build.log 2>&1 || (cat build.log && exit 1)
           sh util/build-with-dd.sh     ${{ matrix.NGINX_VERSION }} > build.log 2>&1 || (cat build.log && exit 1)
@@ -250,7 +252,7 @@ jobs:
 
       - name: Run releng check
         run: |
-          export PATH=$PWD/work/nginx/sbin:$PWD/openresty-devel-utils:/opt/curl-h3/bin:$PATH
+          export PATH=$PWD/work/nginx/sbin:$PWD/openresty-devel-utils:/opt/curl/bin:$PATH
           ngx-releng > check.txt || true
           lines=$(wc -l check.txt | awk '{print $1}')
           if [ "$lines" -gt 5 ]; then cat check.txt; exit 1; fi
@@ -272,7 +274,7 @@ jobs:
       - name: Run tests
         run: |
           export LD_LIBRARY_PATH=$LUAJIT_LIB:$PWD/mockeagain:$LD_LIBRARY_PATH
-          export PATH=$PWD/work/nginx/sbin:$PWD/openresty-devel-utils:/opt/curl-h3/bin:$PATH
+          export PATH=$PWD/work/nginx/sbin:$PWD/openresty-devel-utils:/opt/curl/bin:$PATH
           export LD_PRELOAD=$PWD/mockeagain/mockeagain.so
           export TEST_NGINX_HTTP3_CRT=$PWD/t/cert/http3/http3.crt
           export TEST_NGINX_HTTP3_KEY=$PWD/t/cert/http3/http3.key
diff --git a/t/005-exit.t b/t/005-exit.t
index 7b82a81e4c..e4a883d131 100644
--- a/t/005-exit.t
+++ b/t/005-exit.t
@@ -783,7 +783,7 @@ GET /t
 --- no_error_log
 [error]
 --- curl_error
-curl: (95) HTTP/3 stream 0 reset by server
+curl: (95) HTTP/3 stream 0 reset by server (error 0x102 INTERNAL_ERROR)
 
 
 
@@ -802,8 +802,7 @@ GET /t
 --- no_error_log
 [error]
 --- curl_error
-curl: (95) HTTP/3 stream 0 reset by server
-
+curl: (95) HTTP/3 stream 0 reset by server (error 0x102 INTERNAL_ERROR)
 
 
 === TEST 29: refuses NGX_AGAIN
diff --git a/t/033-ctx.t b/t/033-ctx.t
index 77bd15f8c1..bcb34ad909 100644
--- a/t/033-ctx.t
+++ b/t/033-ctx.t
@@ -279,7 +279,7 @@ GET /t
 --- error_log
 ngx.ctx = 32
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
diff --git a/t/041-header-filter.t b/t/041-header-filter.t
index 23730815da..3ce70711e2 100644
--- a/t/041-header-filter.t
+++ b/t/041-header-filter.t
@@ -125,7 +125,7 @@ GET /read
 --- error_code
 --- response_body
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -469,7 +469,7 @@ failed to run header_filter_by_lua*: header_filter_by_lua(nginx.conf:47):2: Some
 --- no_error_log
 [alert]
 --- curl_error eval
-qr/curl: \(56\) Failure when receiving data from the peer|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(28\) Remote peer returned unexpected data|curl: \(52\) Empty reply from server|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(56\) ngtcp2_conn_writev_stream returned error: ERR_CLOSING|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(28\) Remote peer returned unexpected data|curl: \(52\) Empty reply from server|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -494,7 +494,7 @@ failed to run header_filter_by_lua*: unknown reason
 --- no_error_log
 [alert]
 --- curl_error eval
-qr/curl: \(56\) Failure when receiving data from the peer|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(28\) Remote peer returned unexpected data|curl: \(52\) Empty reply from server|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(56\) ngtcp2_conn_writev_stream returned error: ERR_CLOSING|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(28\) Remote peer returned unexpected data|curl: \(52\) Empty reply from server|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -510,7 +510,7 @@ GET /lua
 --- error_log
 API disabled in the context of header_filter_by_lua*
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -526,7 +526,7 @@ GET /lua
 --- error_log
 API disabled in the context of header_filter_by_lua*
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -542,7 +542,7 @@ GET /lua
 --- error_log
 API disabled in the context of header_filter_by_lua*
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -558,7 +558,7 @@ GET /lua
 --- error_log
 API disabled in the context of header_filter_by_lua*
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -574,7 +574,7 @@ GET /lua
 --- error_log
 API disabled in the context of header_filter_by_lua*
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -594,7 +594,7 @@ GET /lua
 --- error_log
 API disabled in the context of header_filter_by_lua*
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -614,7 +614,7 @@ GET /lua
 --- error_log
 API disabled in the context of header_filter_by_lua*
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -630,7 +630,7 @@ GET /lua
 --- error_log
 API disabled in the context of header_filter_by_lua*
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -646,7 +646,7 @@ GET /lua
 --- error_log
 API disabled in the context of header_filter_by_lua*
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -662,7 +662,7 @@ GET /lua
 --- error_log
 API disabled in the context of header_filter_by_lua*
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -696,7 +696,7 @@ GET /lua
 --- error_log eval
 qr/API disabled in the context of header_filter_by_lua\*|http3 requests are not supported without content-length header/ms
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -720,7 +720,7 @@ if (defined $ENV{TEST_NGINX_USE_HTTP3}) {
 
 $err_log;
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -736,7 +736,7 @@ GET /lua
 --- error_log
 API disabled in the context of header_filter_by_lua*
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -752,7 +752,7 @@ GET /lua
 --- error_log
 API disabled in the context of header_filter_by_lua*
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -801,7 +801,7 @@ in function 'error'
 in function 'bar'
 in function 'foo'
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -821,7 +821,7 @@ GET /lua?a=1&b=2
 --- error_log eval
 qr/failed to load external Lua file ".*?test2\.lua": cannot open .*? No such file or directory/
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -870,7 +870,7 @@ failed to load inlined Lua code: header_filter_by_lua(nginx.conf:41):2: unexpect
 --- no_error_log
 no_such_error
 --- curl_error eval
-qr/curl: \(56\) Failure when receiving data from the peer|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly: INTERNAL_ERROR \(err 2\)/
+qr/curl: \(56\) ngtcp2_conn_writev_stream returned error: ERR_CLOSING|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)/
 
 
 
@@ -901,7 +901,7 @@ failed to load inlined Lua code: header_filter_by_lua(nginx.conf:49):2: unexpect
 --- no_error_log
 no_such_error
 --- curl_error eval
-qr/curl: \(56\) Failure when receiving data from the peer|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly: INTERNAL_ERROR \(err 2\)/
+qr/curl: \(56\) ngtcp2_conn_writev_stream returned error: ERR_CLOSING|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)/
 
 
 
@@ -927,4 +927,4 @@ failed to load inlined Lua code: header_filter_by_lua(...90123456789012345678901
 --- no_error_log
 [alert]
 --- curl_error eval
-qr/curl: \(56\) Failure when receiving data from the peer|curl: \(56\) Failure when receiving data from the peer|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly: INTERNAL_ERROR \(err 2\)/
+qr/curl: \(56\) ngtcp2_conn_writev_stream returned error: ERR_CLOSING|curl: \(56\) Failure when receiving data from the peer|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)/
diff --git a/t/091-coroutine.t b/t/091-coroutine.t
index 16930ed3c0..fb57d59a02 100644
--- a/t/091-coroutine.t
+++ b/t/091-coroutine.t
@@ -763,7 +763,7 @@ GET /lua
 --- error_log
 API disabled in the context of header_filter_by_lua*
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
@@ -1701,7 +1701,7 @@ GET /t
     "in function 'co'"
 ]
 --- curl_error eval
-qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 was not closed cleanly|curl: \(95\) HTTP\/3 stream 0 reset by server/
+qr/curl: \(52\) Empty reply from server|curl: \(92\) HTTP\/2 stream 1 reset by server \(error 0x2 INTERNAL_ERROR\)|curl: \(95\) HTTP\/3 stream 0 reset by server/
 
 
 
diff --git a/t/166-ssl-client-hello.t b/t/166-ssl-client-hello.t
index 4372d0d1f8..c2a76ae43c 100644
--- a/t/166-ssl-client-hello.t
+++ b/t/166-ssl-client-hello.t
@@ -3437,7 +3437,7 @@ qr/test completed/,
 GET /t
 --- ignore_response
 --- curl_error eval
-qr/Connection time/
+qr/Failed to connect to .* port .* after .* ms: Could not connect to server/
 --- grep_error_log eval: qr/(client hello: cosocket test start|client hello: received memc reply: VERSION|client hello: cosocket test done|cert by: test start)/
 --- grep_error_log_out eval
 [