diff --git a/hirosystems/stacks-blockchain-api/Chart.lock b/hirosystems/stacks-blockchain-api/Chart.lock
index 9709e29..ab0f422 100644
--- a/hirosystems/stacks-blockchain-api/Chart.lock
+++ b/hirosystems/stacks-blockchain-api/Chart.lock
@@ -7,6 +7,6 @@ dependencies:
   version: 12.12.10
 - name: common
   repository: https://charts.bitnami.com/bitnami
-  version: 2.23.0
-digest: sha256:855e6c5e46f6c06f38ad6cbcbd0795dcb5823bbc661e9da04ae26cfba4fa054a
-generated: "2024-09-17T06:21:57.839791-07:00"
+  version: 2.26.0
+digest: sha256:2e457f807e54e320d5902c2c6e852168d1c5f9f6a55f43d00c2c781becb5a35b
+generated: "2024-10-14T17:09:34.313196-04:00"
diff --git a/hirosystems/stacks-blockchain-api/Chart.yaml b/hirosystems/stacks-blockchain-api/Chart.yaml
index 68a6473..bb13c53 100644
--- a/hirosystems/stacks-blockchain-api/Chart.yaml
+++ b/hirosystems/stacks-blockchain-api/Chart.yaml
@@ -41,4 +41,4 @@ sources:
   - https://github.com/hirosystems/stacks-blockchain-api
   - https://docs.hiro.so/api
   - https://docs.hiro.so/get-started/stacks-blockchain-api
-version: 5.1.0
+version: 5.1.1
diff --git a/hirosystems/stacks-blockchain-api/templates/api-writer/statefulset.yaml b/hirosystems/stacks-blockchain-api/templates/api-writer/statefulset.yaml
index f542b3f..882a74a 100644
--- a/hirosystems/stacks-blockchain-api/templates/api-writer/statefulset.yaml
+++ b/hirosystems/stacks-blockchain-api/templates/api-writer/statefulset.yaml
@@ -336,8 +336,10 @@ spec:
             - name: STACKS_CHAIN_ID
               {{- if eq .Values.blockchainNetwork "mainnet" }}
               value: "0x00000001"
-              {{- else }}
+              {{- else if eq .Values.blockchainNetwork "testnet" }}
               value: "0x80000000"
+              {{- else }}
+              value: {{ default "0x80000000" .Values.blockchainNetwork | quote }}
               {{- end }}
             - name: STACKS_CORE_EVENT_PORT
               value: {{ default "3700" .Values.apiWriter.containerPorts.socket | quote }}