diff --git a/buildkite/scripts/build-hardfork-package.sh b/buildkite/scripts/build-hardfork-package.sh
index faef3755a41..c14f76a29dc 100755
--- a/buildkite/scripts/build-hardfork-package.sh
+++ b/buildkite/scripts/build-hardfork-package.sh
@@ -31,6 +31,10 @@ echo "--- Download and extract previous network config"
 curl -o config.json.gz $CONFIG_JSON_GZ_URL
 gunzip config.json.gz
 
+# Patch against a bug in 1.4 which is fixed by PR #15462
+mv config.json config_orig.json
+jq 'del(.ledger.num_accounts) | del(.ledger.name)' config_orig.json > config.json 
+
 echo "--- Migrate accounts to new network format"
 # TODO: At this stage, we need to migrate the json accounts into the new network's format.
 #       For now, this is hard-coded to the mainnet -> berkeley migration, but we need to select
diff --git a/scripts/mina-verify-packaged-fork-config b/scripts/mina-verify-packaged-fork-config
index 0676255e0f9..6870687b4c9 100755
--- a/scripts/mina-verify-packaged-fork-config
+++ b/scripts/mina-verify-packaged-fork-config
@@ -130,12 +130,17 @@ GENESIS_TIMESTAMP=$(jq -r '.genesis.genesis_state_timestamp' "$PACKAGED_DAEMON_C
 
 echo "exporting ledgers from running node ... (this may take a while)" >&2
 
+override_file="$workdir/override-genesis-timestamp.json"
+echo "{\"genesis\":{\"genesis_state_timestamp\":\"$(date -u +"%Y-%m-%dT%H:%M:%SZ")\"}}" > "$override_file"
+
 # export the packaged ledgers in a way where we know which one is which
 function extract_ledgers() {
     config_file=$1
     ledger_dir=$2
     json_prefix=$3
-    "$MINA_EXE" daemon --libp2p-keypair "$workdir/keys/p2p" --config-file "$config_file" --seed --genesis-ledger-dir "$ledger_dir" &
+    "$MINA_EXE" daemon --libp2p-keypair "$workdir/keys/p2p" \
+      --config-file "$config_file" --config-file "$override_file" \
+      --seed --genesis-ledger-dir "$ledger_dir" &
 
     while ! "$MINA_EXE" ledger export staged-ledger  | jq . 2>/dev/null >"$json_prefix-staged.json"; do
         sleep 1m