diff --git a/ci/release/template/scripts/lib.sh b/ci/release/template/scripts/lib.sh
index d945da3f3..88e9c2972 100644
--- a/ci/release/template/scripts/lib.sh
+++ b/ci/release/template/scripts/lib.sh
@@ -18,25 +18,19 @@ if [ "${LIB_RAND-}" ]; then
 fi
 LIB_RAND=1
 
-rand() {
-  seed="$1"
-  range="$2"
-
-  seed_file="$(mktemp)"
-  _echo "$seed" | md5sum > "$seed_file"
-  shuf -i "$range" -n 1 --random-source="$seed_file"
-}
-
 pick() {
-  if ! command -v shuf >/dev/null || ! command -v md5sum >/dev/null; then
-    eval "_echo \"\$3\""
-    return
-  fi
-
   seed="$1"
   shift
-  i="$(rand "$seed" "1-$#")"
-  eval "_echo \"\$$i\""
+
+  seed_file="$(mktemp)"
+  echo "$seed" > "$seed_file"
+
+  while [ $# -gt 0 ]; do
+    echo "$1"
+    shift
+  done \
+    | sort --sort=random --random-source="$seed_file" \
+    | head -n1
 }
 #!/bin/sh
 if [ "${LIB_LOG-}" ]; then
diff --git a/install.sh b/install.sh
index 616222862..ac96ca52e 100755
--- a/install.sh
+++ b/install.sh
@@ -23,25 +23,19 @@ if [ "${LIB_RAND-}" ]; then
 fi
 LIB_RAND=1
 
-rand() {
-  seed="$1"
-  range="$2"
-
-  seed_file="$(mktemp)"
-  _echo "$seed" | md5sum > "$seed_file"
-  shuf -i "$range" -n 1 --random-source="$seed_file"
-}
-
 pick() {
-  if ! command -v shuf >/dev/null || ! command -v md5sum >/dev/null; then
-    eval "_echo \"\$3\""
-    return
-  fi
-
   seed="$1"
   shift
-  i="$(rand "$seed" "1-$#")"
-  eval "_echo \"\$$i\""
+
+  seed_file="$(mktemp)"
+  echo "$seed" > "$seed_file"
+
+  while [ $# -gt 0 ]; do
+    echo "$1"
+    shift
+  done \
+    | sort --sort=random --random-source="$seed_file" \
+    | head -n1
 }
 #!/bin/sh
 if [ "${LIB_LOG-}" ]; then