diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 300101923..4f1ee21d7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -210,6 +210,7 @@ jobs:
         if: needs.scope.outputs.control == 'true'
         run: |
           ../deployment/aliyun/test-polymarket-raw-ops-control-plane.sh
+          ../deployment/aliyun/test-polymarket-market-tape-upload-contract.sh
           cargo test -p hft-collector --lib systemd_reference_resource_envelope_is_pinned --locked
 
       - name: Build focused packages
diff --git a/deployment/aliyun/polymarket-market-tape-upload.service b/deployment/aliyun/polymarket-market-tape-upload.service
index e1151ab53..257e80d46 100644
--- a/deployment/aliyun/polymarket-market-tape-upload.service
+++ b/deployment/aliyun/polymarket-market-tape-upload.service
@@ -11,7 +11,7 @@ User=hftcollector
 Group=hftcollector
 Environment=HOME=/var/lib/hft-collector
 EnvironmentFile=/etc/monday/polymarket-market-tape-upload.env
-ExecStart=/opt/monday/bin/polymarket-raw-ops upload --quote-depth-levels 0 --quote-sample-ms 0
+ExecStart=/usr/bin/env ZSTD_THREADS=1 /opt/monday/bin/polymarket-raw-ops upload --quote-depth-levels 0 --quote-sample-ms 0 --upload-concurrency 1
 TimeoutStartSec=0
 NoNewPrivileges=true
 PrivateTmp=true
diff --git a/deployment/aliyun/polymarket-raw-ops-cutover.sh b/deployment/aliyun/polymarket-raw-ops-cutover.sh
index 0648b33f8..265ce82aa 100755
--- a/deployment/aliyun/polymarket-raw-ops-cutover.sh
+++ b/deployment/aliyun/polymarket-raw-ops-cutover.sh
@@ -34,7 +34,7 @@ readonly RUST_EXEC="$ACTIVE_BINARY collect-reference --max-trade-polls-per-cycle
 readonly COLLECTOR_FRAGMENT="/etc/systemd/system/$COLLECTOR_UNIT"
 readonly LEGACY_REFERENCE_UPLOAD_EXEC="/usr/bin/python3 $LEGACY_UPLOADER --spool-dir /data/monday/spool/polymarket-reference --dataset crypto_expiry_reference --quote-depth-levels 0 --quote-sample-ms 0"
 readonly REFERENCE_UPLOAD_EXEC="$ACTIVE_BINARY upload --spool-dir /data/monday/spool/polymarket-reference --dataset crypto_expiry_reference --quote-depth-levels 0 --quote-sample-ms 0"
-readonly MARKET_UPLOAD_EXEC="$ACTIVE_BINARY upload --quote-depth-levels 0 --quote-sample-ms 0"
+readonly MARKET_UPLOAD_EXEC="/usr/bin/env ZSTD_THREADS=1 $ACTIVE_BINARY upload --quote-depth-levels 0 --quote-sample-ms 0 --upload-concurrency 1"
 readonly UPLOAD_ENV=/etc/monday/polymarket-market-tape-upload.env
 readonly MAX_HEALTH_SILENCE_SECONDS=240
 readonly -a UNIT_ASSETS=(
diff --git a/deployment/aliyun/test-polymarket-market-tape-upload-contract.sh b/deployment/aliyun/test-polymarket-market-tape-upload-contract.sh
new file mode 100755
index 000000000..4989a2c16
--- /dev/null
+++ b/deployment/aliyun/test-polymarket-market-tape-upload-contract.sh
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+script_dir=$(cd -- "$(dirname -- "$0")" && pwd)
+service="$script_dir/polymarket-market-tape-upload.service"
+cutover="$script_dir/polymarket-raw-ops-cutover.sh"
+dollar='$'
+
+grep -Fxq 'ExecStart=/usr/bin/env ZSTD_THREADS=1 /opt/monday/bin/polymarket-raw-ops upload --quote-depth-levels 0 --quote-sample-ms 0 --upload-concurrency 1' "$service"
+grep -Fxq "readonly MARKET_UPLOAD_EXEC=\"/usr/bin/env ZSTD_THREADS=1 ${dollar}ACTIVE_BINARY upload --quote-depth-levels 0 --quote-sample-ms 0 --upload-concurrency 1\"" "$cutover"