diff --git a/deps/download-deps.bat b/deps/download-deps.bat
index b3e173aa..7017d955 100644
--- a/deps/download-deps.bat
+++ b/deps/download-deps.bat
@@ -6,4 +6,4 @@ set p=%~dp0
 curl -fsS -o %p%\doctest\doctest.h https://raw.githubusercontent.com/doctest/doctest/v2.5.2/doctest/doctest.h
 curl -fsS -o %p%\picojson\picojson.h https://raw.githubusercontent.com/kazuho/picojson/111c9be5188f7350c2eac9ddaedd8cca3d7bf394/picojson.h
 curl -fsS -o %p%\ankerl/nanobench.h https://raw.githubusercontent.com/martinus/nanobench/v4.3.11/src/include/nanobench.h
-curl -fsS -o %p%\srell\srell.hpp https://raw.githubusercontent.com/upa-url/srell/refs/tags/v2026.04/srell-src/single-header/srell.hpp
+curl -fsS -o %p%\srell\srell.hpp https://raw.githubusercontent.com/upa-url/srell/refs/tags/v2026.05/srell-src/single-header/srell.hpp
diff --git a/deps/download-deps.sh b/deps/download-deps.sh
index 65c0c0b9..bc9dabb8 100755
--- a/deps/download-deps.sh
+++ b/deps/download-deps.sh
@@ -7,4 +7,4 @@ p="$(dirname "$0")"
 curl -fsS -o $p/doctest/doctest.h https://raw.githubusercontent.com/doctest/doctest/v2.5.2/doctest/doctest.h
 curl -fsS -o $p/picojson/picojson.h https://raw.githubusercontent.com/kazuho/picojson/111c9be5188f7350c2eac9ddaedd8cca3d7bf394/picojson.h
 curl -fsS -o $p/ankerl/nanobench.h https://raw.githubusercontent.com/martinus/nanobench/v4.3.11/src/include/nanobench.h
-curl -fsS -o $p/srell/srell.hpp https://raw.githubusercontent.com/upa-url/srell/refs/tags/v2026.04/srell-src/single-header/srell.hpp
+curl -fsS -o $p/srell/srell.hpp https://raw.githubusercontent.com/upa-url/srell/refs/tags/v2026.05/srell-src/single-header/srell.hpp