diff --git a/Makefile b/Makefile
index ceede83..bba7352 100644
--- a/Makefile
+++ b/Makefile
@@ -25,7 +25,7 @@ ARCH ?= amd64
 OS ?= $(shell uname -s | tr A-Z a-z)
 K8S_LATEST_VER ?= $(shell curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)
 export CONTROLLER_IMG ?= $(REGISTRY)/$(IMAGE_NAME)
-TAG ?= main
+TAG ?= dev
 
 .PHONY: all
 all: build
diff --git a/config/default/manager_image_patch.yaml b/config/default/manager_image_patch.yaml
index f867f12..e3e53cf 100644
--- a/config/default/manager_image_patch.yaml
+++ b/config/default/manager_image_patch.yaml
@@ -8,5 +8,5 @@ spec:
     spec:
       containers:
       # Change the value of image field below to your controller image URL
-      - image: projectsveltos/healthcheck-manager-amd64:main
+      - image: projectsveltos/healthcheck-manager-amd64:dev
         name: manager
diff --git a/config/manager/manager.yaml b/config/manager/manager.yaml
index b97ae7a..22e0959 100644
--- a/config/manager/manager.yaml
+++ b/config/manager/manager.yaml
@@ -70,9 +70,9 @@ spec:
         resources:
           limits:
             cpu: 500m
-            memory: 128Mi
+            memory: 256Mi
           requests:
             cpu: 10m
-            memory: 64Mi
+            memory: 128Mi
       serviceAccountName: hc-manager
       terminationGracePeriodSeconds: 10
diff --git a/manifest/deployment-shard.yaml b/manifest/deployment-shard.yaml
index a4d89fd..51e50e2 100644
--- a/manifest/deployment-shard.yaml
+++ b/manifest/deployment-shard.yaml
@@ -24,7 +24,7 @@ spec:
         - --v=5
         command:
         - /manager
-        image: projectsveltos/healthcheck-manager-amd64:main
+        image: projectsveltos/healthcheck-manager-amd64:dev
         livenessProbe:
           failureThreshold: 3
           httpGet:
@@ -52,10 +52,10 @@ spec:
         resources:
           limits:
             cpu: 500m
-            memory: 128Mi
+            memory: 256Mi
           requests:
             cpu: 10m
-            memory: 64Mi
+            memory: 128Mi
         securityContext:
           allowPrivilegeEscalation: false
           capabilities:
diff --git a/manifest/manifest.yaml b/manifest/manifest.yaml
index b3116e5..370df72 100644
--- a/manifest/manifest.yaml
+++ b/manifest/manifest.yaml
@@ -223,7 +223,7 @@ spec:
         - --v=5
         command:
         - /manager
-        image: projectsveltos/healthcheck-manager-amd64:main
+        image: projectsveltos/healthcheck-manager-amd64:dev
         livenessProbe:
           failureThreshold: 3
           httpGet:
@@ -251,10 +251,10 @@ spec:
         resources:
           limits:
             cpu: 500m
-            memory: 128Mi
+            memory: 256Mi
           requests:
             cpu: 10m
-            memory: 64Mi
+            memory: 128Mi
         securityContext:
           allowPrivilegeEscalation: false
           capabilities:
diff --git a/test/healthcheckmanager-shard.yaml b/test/healthcheckmanager-shard.yaml
index d78f641..70b4ed3 100644
--- a/test/healthcheckmanager-shard.yaml
+++ b/test/healthcheckmanager-shard.yaml
@@ -42,10 +42,10 @@ spec:
         resources:
           limits:
             cpu: 500m
-            memory: 128Mi
+            memory: 256Mi
           requests:
             cpu: 10m
-            memory: 64Mi
+            memory: 128Mi
         securityContext:
           allowPrivilegeEscalation: false
           capabilities: