diff --git a/charts/generic/experiments.yaml b/charts/generic/experiments.yaml
index b67a9a7..769342d 100644
--- a/charts/generic/experiments.yaml
+++ b/charts/generic/experiments.yaml
@@ -1564,6 +1564,10 @@ spec:
     - name: LIB_IMAGE
       value: 'litmuschaos/go-runner:latest'  
 
+    ## It is used in pumba lib only    
+    - name: STRESS_IMAGE
+      value: 'alexeiled/stress-ng:latest-ubuntu'  
+
     # provide the socket file path
     # it is used in pumba lib
     - name: SOCKET_PATH
@@ -2219,6 +2223,10 @@ spec:
       - name: LIB_IMAGE
         value: 'litmuschaos/go-runner:latest'
 
+      ## It is used in pumba lib only    
+      - name: STRESS_IMAGE
+        value: 'alexeiled/stress-ng:latest-ubuntu'
+
       # provide the socket file path
       # it is used in pumba lib
       - name: SOCKET_PATH