diff --git a/internal/adapter/templates/templates/components/service/Dockerfile.tmpl b/internal/adapter/templates/templates/components/service/Dockerfile.tmpl
index 1653ac8..cb12421 100644
--- a/internal/adapter/templates/templates/components/service/Dockerfile.tmpl
+++ b/internal/adapter/templates/templates/components/service/Dockerfile.tmpl
@@ -14,6 +14,10 @@ WORKDIR /app
 COPY pkg/ ./pkg/
 COPY services/{{COMPONENT_NAME}}/ ./services/{{COMPONENT_NAME}}/
 
+# Download dependencies (populates go.sum if empty)
+RUN cd pkg && go mod download
+RUN cd services/{{COMPONENT_NAME}} && go mod download
+
 # Build from the service directory (uses replace directive for ../pkg)
 RUN cd services/{{COMPONENT_NAME}} && CGO_ENABLED=0 go build -o /{{COMPONENT_NAME}} ./cmd/server
 
diff --git a/internal/adapter/templates/templates/components/worker/Dockerfile.tmpl b/internal/adapter/templates/templates/components/worker/Dockerfile.tmpl
index b6094df..be5c530 100644
--- a/internal/adapter/templates/templates/components/worker/Dockerfile.tmpl
+++ b/internal/adapter/templates/templates/components/worker/Dockerfile.tmpl
@@ -14,6 +14,10 @@ WORKDIR /app
 COPY pkg/ ./pkg/
 COPY workers/{{COMPONENT_NAME}}/ ./workers/{{COMPONENT_NAME}}/
 
+# Download dependencies (populates go.sum if empty)
+RUN cd pkg && go mod download
+RUN cd workers/{{COMPONENT_NAME}} && go mod download
+
 # Build from the worker directory (uses replace directive for ../pkg)
 RUN cd workers/{{COMPONENT_NAME}} && CGO_ENABLED=0 go build -o /{{COMPONENT_NAME}} ./cmd/worker