diff --git a/update-versions.sh b/update-versions.sh
new file mode 100755
index 00000000..59399da5
--- /dev/null
+++ b/update-versions.sh
@@ -0,0 +1,97 @@
+#!/bin/bash
+
+shopt -s globstar
+
+###############################################################################
+# Utils
+###############################################################################
+
+# Find package version
+find_package_version() {
+    grep -Po '^version:\s+\K\d+(?:\.\d+)+' < "$1"
+}
+
+get_version_field() {
+    echo "$2" | cut -f "$1" -d'.'
+}
+
+VERSION_PATTERN="[0-9]+(\\.[0-9]+)+"
+
+###############################################################################
+# Bump packages versions
+###############################################################################
+
+# Bump package version
+# from U.B.M to (U+1).0.0 if Unicode is bumped, else U.(B+1).0
+bump_package_version() {
+    # Find version
+    version="$(find_package_version "$2")"
+    unicode="$(get_version_field 1 "$version")"
+    major="$(get_version_field 2 "$version")"
+    # Bump version
+    if [ "$1" == "true" ]
+    then
+        unicode=$((unicode + 1))
+        major=0
+    else
+        major=$((major + 1))
+    fi
+    new_version="$unicode.$major.0"
+    echo "Found: $(basename -s .cabal "$2")-$version; bump to: $new_version."
+    sed -ri "s/^(version:\s+)$VERSION_PATTERN/\1$new_version/" "$2"
+}
+
+bump_packages_versions () {
+    for cabal in **/*.cabal
+    do
+        bump_package_version "$1" "$cabal"
+    done
+}
+
+###############################################################################
+# Bump dependencies
+###############################################################################
+
+bump_dependencies() {
+    version="$(find_package_version unicode-data/unicode-data.cabal)"
+
+    unicode_version="$(get_version_field 1 "$version")"
+    unicode_data_major="$(get_version_field 2 "$version")"
+    # unicode_data_minor="$(get_version_field 3 "$version")"
+
+    unicode_data_min_bound="$unicode_version.$unicode_data_major"
+    unicode_data_max_bound="$unicode_version.$((unicode_data_major+1))"
+
+    regex="s/(unicode-data\\s+>= )$VERSION_PATTERN"
+    regex+="(\\s+&&\\s+< )$VERSION_PATTERN/"
+    regex+="\\1$unicode_data_min_bound\\3$unicode_data_max_bound/"
+
+    for cabal in **/*.cabal
+    do
+        echo "Update dependencies of: $(basename -s .cabal "$cabal")"
+        sed -ri "$regex" "$cabal"
+    done
+}
+
+# Print help text
+print_help() {
+    echo "Usage: update-versions.sh [options]"
+    echo
+    echo "Available options:"
+    echo "-u Bump Unicode version"
+}
+
+# Default options
+BUMP_UNICODE=false
+
+# Parse command line
+while getopts "hu" opt; do
+    case "$opt" in
+        h) print_help; exit 0;;
+        u) BUMP_UNICODE=true;;
+        *) print_help; exit 1;;
+    esac
+done
+
+bump_packages_versions "$BUMP_UNICODE"
+bump_dependencies