diff --git a/Weather/SerialReader/deploy/azure-pipelines.yml b/Weather/SerialReader/deploy/azure-pipelines.yml
index 961d0cb..1a0dfe7 100644
--- a/Weather/SerialReader/deploy/azure-pipelines.yml
+++ b/Weather/SerialReader/deploy/azure-pipelines.yml
@@ -34,7 +34,9 @@ steps:
 - task: Bash@3
   inputs:
     targetType: 'inline'
-    script: 'sed -i s/{TAG}/${Build.BuildNumber}/ Weather/SerialReader/deploy/manifest.yaml'
+    script: 'sed -i s/#TAG#/$(TAG)/ Weather/SerialReader/deploy/manifest.yaml'
+  env:
+    Tag: $(Build.BuildNumber)
 
 - task: PublishBuildArtifacts@1
   inputs:
diff --git a/Weather/SerialReader/deploy/manifest.yaml b/Weather/SerialReader/deploy/manifest.yaml
index efc89b0..15433fe 100644
--- a/Weather/SerialReader/deploy/manifest.yaml
+++ b/Weather/SerialReader/deploy/manifest.yaml
@@ -86,7 +86,7 @@ spec:
     spec:
       containers:
       - name: weather-serial-reader
-        image: ckaczor/home-monitor-weather-serialreader:{TAG}
+        image: ckaczor/home-monitor-weather-serialreader:#TAG#
         terminationMessagePath: "/dev/termination-log"
         terminationMessagePolicy: File
         imagePullPolicy: Always