diff --git a/.tekton/model-transparency-cli-stack-main-pull-request.yaml b/.tekton/model-transparency-cli-stack-main-pull-request.yaml
index 97a53b5..76303e7 100644
--- a/.tekton/model-transparency-cli-stack-main-pull-request.yaml
+++ b/.tekton/model-transparency-cli-stack-main-pull-request.yaml
@@ -32,8 +32,10 @@ spec:
     value: .
   - name: revision
     value: '{{revision}}'
+  - name: prefetch-input
+    value: '{"type": "gomod", "path": "."}'
   - name: hermetic
-    value: "false"
+    value: "true"
   - name: build-source-image
     value: "true"
   - name: ALLOW_CROSS_PLATFORM_IMAGES
diff --git a/.tekton/model-transparency-cli-stack-main-push.yaml b/.tekton/model-transparency-cli-stack-main-push.yaml
index aa933b0..bf9bbe4 100644
--- a/.tekton/model-transparency-cli-stack-main-push.yaml
+++ b/.tekton/model-transparency-cli-stack-main-push.yaml
@@ -32,7 +32,7 @@ spec:
   - name: prefetch-input
     value: '{"type": "gomod", "path": "."}'
   - name: hermetic
-    value: "false"
+    value: "true"
   - name: build-source-image
     value: "true"
   - name: ALLOW_CROSS_PLATFORM_IMAGES