diff --git a/.github/workflows/cloudevents-integration.yml b/.github/workflows/cloudevents-integration.yml
index 38951c85e..ee82ce330 100644
--- a/.github/workflows/cloudevents-integration.yml
+++ b/.github/workflows/cloudevents-integration.yml
@@ -14,7 +14,7 @@ on:
       - release-*
 
 env:
-  GO_VERSION: '1.25'
+  GO_VERSION: '1.26'
   GO_REQUIRED_MIN_VERSION: ''
 
 permissions:
diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml
index 0bc191d31..28980c04e 100644
--- a/.github/workflows/e2e.yml
+++ b/.github/workflows/e2e.yml
@@ -15,7 +15,7 @@ on:
       - release-*
 
 env:
-  GO_VERSION: '1.25'
+  GO_VERSION: '1.26'
   GO_REQUIRED_MIN_VERSION: ''
   USE_EXISTING_CLUSTER: false # set to true to use an existing kind cluster for debugging with act
 
@@ -36,7 +36,7 @@ jobs:
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: Setup kind
-        uses: engineerd/setup-kind@v0.6.2
+        uses: engineerd/setup-kind@ecfad61750951586a9ef973db567df1d28671bdc # v0.6.2
         with:
           version: v0.22.0
           skipClusterCreation: ${{ env.USE_EXISTING_CLUSTER }}
@@ -63,7 +63,7 @@ jobs:
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: Setup kind
-        uses: engineerd/setup-kind@v0.6.2
+        uses: engineerd/setup-kind@ecfad61750951586a9ef973db567df1d28671bdc # v0.6.2
         with:
           version: v0.22.0
           skipClusterCreation: ${{ env.USE_EXISTING_CLUSTER }}
@@ -90,7 +90,7 @@ jobs:
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: Setup kind
-        uses: engineerd/setup-kind@v0.6.2
+        uses: engineerd/setup-kind@ecfad61750951586a9ef973db567df1d28671bdc # v0.6.2
         with:
           version: v0.22.0
           skipClusterCreation: ${{ env.USE_EXISTING_CLUSTER }}
@@ -117,7 +117,7 @@ jobs:
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: Setup kind
-        uses: engineerd/setup-kind@v0.6.2
+        uses: engineerd/setup-kind@ecfad61750951586a9ef973db567df1d28671bdc # v0.6.2
         with:
           version: v0.22.0
           skipClusterCreation: ${{ env.USE_EXISTING_CLUSTER }}
diff --git a/.github/workflows/post.yml b/.github/workflows/post.yml
index 0764981ef..c5e4bca08 100644
--- a/.github/workflows/post.yml
+++ b/.github/workflows/post.yml
@@ -13,7 +13,7 @@ on:
 
 env:
   # Common versions
-  GO_VERSION: '1.25'
+  GO_VERSION: '1.26'
   GO_REQUIRED_MIN_VERSION: ''
 
 permissions:
diff --git a/.github/workflows/pre.yml b/.github/workflows/pre.yml
index 954087afa..ec0e853a6 100644
--- a/.github/workflows/pre.yml
+++ b/.github/workflows/pre.yml
@@ -13,7 +13,7 @@ on:
       - release-*
 
 env:
-  GO_VERSION: '1.25'
+  GO_VERSION: '1.26'
   GO_REQUIRED_MIN_VERSION: ''
 
 permissions:
diff --git a/.github/workflows/releaseimage.yml b/.github/workflows/releaseimage.yml
index fb6da0468..f26701629 100644
--- a/.github/workflows/releaseimage.yml
+++ b/.github/workflows/releaseimage.yml
@@ -6,7 +6,7 @@ on:
       - 'v*.*.*'
 env:
   # Common versions
-  GO_VERSION: '1.25'
+  GO_VERSION: '1.26'
   GO_REQUIRED_MIN_VERSION: ''
   GOPATH: '/home/runner/work/ocm/ocm/go'
   GITHUB_REF: ${{ github.ref }}
diff --git a/build/Dockerfile.addon b/build/Dockerfile.addon
index 38fb739e6..9c2841663 100644
--- a/build/Dockerfile.addon
+++ b/build/Dockerfile.addon
@@ -1,4 +1,4 @@
-FROM golang:1.25-bookworm AS builder
+FROM golang:1.26-bookworm AS builder
 ARG OS=linux
 ARG ARCH=amd64
 WORKDIR /go/src/open-cluster-management.io/ocm
diff --git a/build/Dockerfile.placement b/build/Dockerfile.placement
index 429a3b264..535d1a782 100644
--- a/build/Dockerfile.placement
+++ b/build/Dockerfile.placement
@@ -1,4 +1,4 @@
-FROM golang:1.25-bookworm AS builder
+FROM golang:1.26-bookworm AS builder
 ARG OS=linux
 ARG ARCH=amd64
 WORKDIR /go/src/open-cluster-management.io/ocm
diff --git a/build/Dockerfile.registration b/build/Dockerfile.registration
index f821bf48f..03ee1e1fa 100644
--- a/build/Dockerfile.registration
+++ b/build/Dockerfile.registration
@@ -1,4 +1,4 @@
-FROM golang:1.25-bookworm AS builder
+FROM golang:1.26-bookworm AS builder
 ARG OS=linux
 ARG ARCH=amd64
 WORKDIR /go/src/open-cluster-management.io/ocm
diff --git a/build/Dockerfile.registration-operator b/build/Dockerfile.registration-operator
index 4615a80eb..dbf1d79dd 100644
--- a/build/Dockerfile.registration-operator
+++ b/build/Dockerfile.registration-operator
@@ -1,4 +1,4 @@
-FROM golang:1.25-bookworm AS builder
+FROM golang:1.26-bookworm AS builder
 ARG OS=linux
 ARG ARCH=amd64
 WORKDIR /go/src/open-cluster-management.io/ocm
diff --git a/build/Dockerfile.work b/build/Dockerfile.work
index 7efbcb626..f6d1fcd36 100644
--- a/build/Dockerfile.work
+++ b/build/Dockerfile.work
@@ -1,4 +1,4 @@
-FROM golang:1.25-bookworm AS builder
+FROM golang:1.26-bookworm AS builder
 ARG OS=linux
 ARG ARCH=amd64
 WORKDIR /go/src/open-cluster-management.io/ocm
diff --git a/go.mod b/go.mod
index 7b66ad584..1d2a560e5 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module open-cluster-management.io/ocm
 
-go 1.25.0
+go 1.26.0
 
 require (
 	github.com/aws/aws-sdk-go-v2 v1.41.11
diff --git a/pkg/placement/controllers/scheduling/scheduling_controller.go b/pkg/placement/controllers/scheduling/scheduling_controller.go
index 2a7b16b7f..c97421421 100644
--- a/pkg/placement/controllers/scheduling/scheduling_controller.go
+++ b/pkg/placement/controllers/scheduling/scheduling_controller.go
@@ -591,7 +591,7 @@ func (c *schedulingController) createOrUpdatePlacementDecision(
 	clusterDecisions := placementDecision.Status.Decisions
 
 	if len(clusterDecisions) > maxNumOfClusterDecisions {
-		return fmt.Errorf("the number of clusterdecisions %q exceeds the max limitation %q", len(clusterDecisions), maxNumOfClusterDecisions)
+		return fmt.Errorf("the number of clusterdecisions %d exceeds the max limitation %d", len(clusterDecisions), maxNumOfClusterDecisions)
 	}
 
 	existPlacementDecision, err := c.placementDecisionLister.PlacementDecisions(placementDecision.Namespace).Get(placementDecisionName)