diff --git a/config/ecs/ecs-amp-prometheus.yaml b/config/ecs/ecs-amp-prometheus.yaml
index 2a15bca1a..ed794db9e 100644
--- a/config/ecs/ecs-amp-prometheus.yaml
+++ b/config/ecs/ecs-amp-prometheus.yaml
@@ -1,7 +1,7 @@
 extensions:
   health_check:
   sigv4auth:
-    region: ${AWS_REGION}
+    region: ${env:AWS_REGION}
 
 receivers:
   awsecscontainermetrics:
@@ -13,7 +13,7 @@ receivers:
       scrape_configs:
         - job_name: "otel-collector"
           static_configs:
-            - targets: [$AWS_PROMETHEUS_SCRAPING_ENDPOINT]
+            - targets: [${env:AWS_PROMETHEUS_SCRAPING_ENDPOINT}]
 
 processors:
   batch/metrics:
@@ -41,7 +41,7 @@ processors:
 
 exporters:
   prometheusremotewrite:
-    endpoint: ${AWS_PROMETHEUS_ENDPOINT}
+    endpoint: ${env:AWS_PROMETHEUS_ENDPOINT}
     auth:
       authenticator: sigv4auth
     resource_to_telemetry_conversion:
diff --git a/config/ecs/ecs-amp-xray-prometheus.yaml b/config/ecs/ecs-amp-xray-prometheus.yaml
index e3ac07ad0..5534b963a 100644
--- a/config/ecs/ecs-amp-xray-prometheus.yaml
+++ b/config/ecs/ecs-amp-xray-prometheus.yaml
@@ -1,7 +1,7 @@
 extensions:
   health_check:
   sigv4auth:
-    region: ${AWS_REGION}
+    region: ${env:AWS_REGION}
 
 receivers:
   otlp:
@@ -19,7 +19,7 @@ receivers:
       scrape_configs:
         - job_name: "otel-collector"
           static_configs:
-            - targets: [$AWS_PROMETHEUS_SCRAPING_ENDPOINT]
+            - targets: [${env:AWS_PROMETHEUS_SCRAPING_ENDPOINT}]
 
 processors:
   batch/traces:
@@ -51,7 +51,7 @@ processors:
 exporters:
   awsxray:
   prometheusremotewrite:
-    endpoint: ${AWS_PROMETHEUS_ENDPOINT}
+    endpoint: ${env:AWS_PROMETHEUS_ENDPOINT}
     auth:
       authenticator: sigv4auth
     resource_to_telemetry_conversion:
diff --git a/config/ecs/ecs-amp-xray.yaml b/config/ecs/ecs-amp-xray.yaml
index 7020c3aa3..e583990d6 100644
--- a/config/ecs/ecs-amp-xray.yaml
+++ b/config/ecs/ecs-amp-xray.yaml
@@ -1,7 +1,7 @@
 extensions:
   health_check:
   sigv4auth:
-    region: ${AWS_REGION}
+    region: ${env:AWS_REGION}
 
 receivers:
   otlp:
@@ -42,7 +42,7 @@ processors:
 exporters:
   awsxray:
   prometheusremotewrite:
-    endpoint: ${AWS_PROMETHEUS_ENDPOINT}
+    endpoint: ${env:AWS_PROMETHEUS_ENDPOINT}
     auth:
       authenticator: sigv4auth
     resource_to_telemetry_conversion:
diff --git a/config/ecs/ecs-amp.yaml b/config/ecs/ecs-amp.yaml
index 806a0891e..4d5f88c49 100644
--- a/config/ecs/ecs-amp.yaml
+++ b/config/ecs/ecs-amp.yaml
@@ -1,7 +1,7 @@
 extensions:
   health_check:
   sigv4auth:
-    region: ${AWS_REGION}
+    region: ${env:AWS_REGION}
 
 receivers:
   otlp:
@@ -38,7 +38,7 @@ processors:
 
 exporters:
   prometheusremotewrite:
-    endpoint: ${AWS_PROMETHEUS_ENDPOINT}
+    endpoint: ${env:AWS_PROMETHEUS_ENDPOINT}
     auth:
       authenticator: sigv4auth
     resource_to_telemetry_conversion:
diff --git a/examples/ecs/aws-prometheus/ecs-ec2-adot-config.yaml b/examples/ecs/aws-prometheus/ecs-ec2-adot-config.yaml
index 86a33ade8..09e60e685 100644
--- a/examples/ecs/aws-prometheus/ecs-ec2-adot-config.yaml
+++ b/examples/ecs/aws-prometheus/ecs-ec2-adot-config.yaml
@@ -7,7 +7,7 @@ receivers:
       scrape_configs:
       - job_name: "test-prometheus-sample-app"
         static_configs:
-        - targets: [ $PROMETHEUS_SAMPLE_APP ]
+        - targets: [ ${env:PROMETHEUS_SAMPLE_APP} ]
   awsecscontainermetrics:
     collection_interval: 20s