diff --git a/bench.sh b/bench.sh
index 774bc3a..8b9bc5c 100755
--- a/bench.sh
+++ b/bench.sh
@@ -29,7 +29,7 @@ readonly tests_exclude_macos="sh6bench sh8bench redis"
 
 readonly version_redis=6.2.7
 readonly version_rocksdb=10.10.1
-readonly version_linux=6.5.1
+readonly version_linux=6.6.105
 
 # --------------------------------------------------------------------
 # Environment
diff --git a/build-bench-env.sh b/build-bench-env.sh
index 99c5234..c8ec595 100755
--- a/build-bench-env.sh
+++ b/build-bench-env.sh
@@ -75,7 +75,7 @@ readonly version_lean=21d264a66d53b0a910178ae7d9529cb5886a39b6 # build fix for r
 readonly version_mathlib=release_812
 readonly version_rocksdb=10.10.1
 readonly version_lua=v5.4.7
-readonly version_linux=6.5.1
+readonly version_linux=6.6.105
 readonly version_bazel=8.8.0
 readonly version_rust=1.87.0
 
@@ -483,7 +483,7 @@ if test "$setup_packages" = "1"; then
   elif grep -q -e 'ID=alpine' /etc/os-release 2>/dev/null; then
     echo "@testing http://nl.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories
     apk update
-    apkinstall "clang lld unzip dos2unix bc gmp-dev wget cmake python3 automake gawk \
+    apkinstall "clang lld unzip dos2unix bc gmp-dev wget cmake python3 ruby automake gawk \
       samurai libtool git cargo build-base linux-headers autoconf util-linux sed \
       ghostscript libatomic gflags-dev readline-dev snappy-dev \
       flex bison elfutils-dev"
@@ -492,7 +492,7 @@ if test "$setup_packages" = "1"; then
     brewinstall "dos2unix wget cmake ninja automake libtool gnu-time gmp mpir gnu-sed \
       ghostscript bazelisk gflags snappy rust"
   elif grep -q 'Arch Linux' /etc/os-release; then
-    sudo pacman -S dos2unix wget cmake ninja automake libtool time gmp sed ghostscript bazelisk gflags snappy rust flex bison libelf
+    sudo pacman -S dos2unix wget cmake ninja automake libtool time gmp sed ghostscript bazelisk gflags snappy rust ruby flex bison libelf
   fi
 fi