diff --git a/docker/regtest/generate-onion-address.sh b/docker/regtest/generate-onion-address.sh
index 422d5c82..161eb9f5 100755
--- a/docker/regtest/generate-onion-address.sh
+++ b/docker/regtest/generate-onion-address.sh
@@ -26,12 +26,9 @@ fi
 SCRIPT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)
 
 TARGETDIR="${1:-"${PWD}/generate-onion-address/out"}"
-WORKDIR="${2:-"${PWD}/generate-onion-address/work"}"
-VANITYTORGEN_REPO_DIR="${WORKDIR}/vanitytorgen"
 # TODO: fork of "https://github.com/Kexkey/vanitytorgen" - should be forked by jam org?
-VANITYTORGEN_REPO_URL="https://github.com/theborakompanioni/vanitytorgen"
-VANITYTORGEN_REPO_BRANCH="main"
-VANITYTORGEN_REPO_REF="f497346ab540153f06edabe65df37ae5536a2d9a"
+VANITYTORGEN_IMAGE="ghcr.io/theborakompanioni/vanitytorgen:v0.1.0"
+VANITYTORGEN_DIGEST="sha256:b934d6d834c22882d268208ec9e2e6a101e0ef71ae0b626ffbd6420d3783fdcc"
 
 # onion addresses are base32 - base32 alphabet allows letters [a-z] and digits [2-7]
 PREFIX_CHARS="234567abcdefghijklmnopqrstuvwxyz" # "jam"
@@ -42,16 +39,10 @@ ONION_ADDRESS_PREFIX="${PREFIX_CHARS:$RANDOM_PREFIX_CHAR_INDEX:1}"
 
 echo "Will use prefix: ${ONION_ADDRESS_PREFIX}"
 
-mkdir -p "$TARGETDIR"
-mkdir -p "$WORKDIR"
+mkdir -p "${TARGETDIR}"
 
-# download "vanitygen" repo if necessary
-if ! [ -d "${VANITYTORGEN_REPO_DIR}" ]; then
-    git clone "${VANITYTORGEN_REPO_URL}" "${VANITYTORGEN_REPO_DIR}" --branch "${VANITYTORGEN_REPO_BRANCH}" \
-        && git --work-tree="${VANITYTORGEN_REPO_DIR}" --git-dir="${VANITYTORGEN_REPO_DIR}/.git" checkout "$VANITYTORGEN_REPO_REF" \
-        && rm -rf "${VANITYTORGEN_REPO_DIR}/.git"
-fi
-
-# build and run "vanitygen" docker container
-docker build --tag jam_regtest_vanitytorgen "${VANITYTORGEN_REPO_DIR}"
-docker run --rm --volume "$TARGETDIR:/out:z" jam_regtest_vanitytorgen "${ONION_ADDRESS_PREFIX}" /out
+docker run --rm \
+  --volume "${TARGETDIR}:/out:z" \
+  --pull "missing" \
+  "${VANITYTORGEN_IMAGE}@${VANITYTORGEN_DIGEST}" \
+  "${ONION_ADDRESS_PREFIX}" /out
diff --git a/docker/regtest/prepare-setup.sh b/docker/regtest/prepare-setup.sh
index 3d51c88a..de92e893 100755
--- a/docker/regtest/prepare-setup.sh
+++ b/docker/regtest/prepare-setup.sh
@@ -31,8 +31,7 @@ OUTPUT_FILE="$SCRIPT_DIR/.env.generated"
 
 # generate an onion address
 HS_SCRIPT_TARGET_DIR="${SCRIPT_DIR}/out/hidden_service_dir"
-HS_SCRIPT_WORK_DIR="${SCRIPT_DIR}/.tmp/generate-onion-address-work"
-. "$SCRIPT_DIR/generate-onion-address.sh" "${HS_SCRIPT_TARGET_DIR}" "${HS_SCRIPT_WORK_DIR}"
+. "$SCRIPT_DIR/generate-onion-address.sh" "${HS_SCRIPT_TARGET_DIR}"
 
 
 ONION_ADDRESS=`cat ${HS_SCRIPT_TARGET_DIR}/hostname`