diff --git a/.github/workflows/buildtest.yaml b/.github/workflows/buildtest.yaml
index be0e93d8f..75f1585a2 100644
--- a/.github/workflows/buildtest.yaml
+++ b/.github/workflows/buildtest.yaml
@@ -38,7 +38,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
         with:
-          go-version: "^1.26"
+          go-version: "^1.25"
 
       - name: Set up gotestfmt
         run: go install github.com/gotesttools/gotestfmt/v2/cmd/gotestfmt@v2.4.1
diff --git a/Dockerfile b/Dockerfile
index 4fb0a92f6..d2ad082df 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang:1.26-alpine AS builder
+FROM golang:1.25-alpine AS builder
 
 ARG TARGETPLATFORM
 ARG TARGETARCH
diff --git a/go.mod b/go.mod
index ab51cf738..4e957eac9 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/livekit/livekit-server
 
-go 1.26
+go 1.25.0
 
 require (
 	github.com/bep/debounce v1.2.1
@@ -21,7 +21,7 @@ require (
 	github.com/jxskiss/base62 v1.1.0
 	github.com/livekit/mageutil v0.0.0-20250511045019-0f1ff63f7731
 	github.com/livekit/mediatransportutil v0.0.0-20260501135216-8818f1b77e59
-	github.com/livekit/protocol v1.45.8-0.20260506075942-ff4d6b682dc7
+	github.com/livekit/protocol v1.45.8-0.20260505211410-5dd801462b33
 	github.com/livekit/psrpc v0.7.1
 	github.com/mackerelio/go-osstat v0.2.7
 	github.com/magefile/mage v1.17.0
diff --git a/go.sum b/go.sum
index 5841fc89a..4558a9f0d 100644
--- a/go.sum
+++ b/go.sum
@@ -181,8 +181,8 @@ github.com/livekit/mageutil v0.0.0-20250511045019-0f1ff63f7731 h1:9x+U2HGLrSw5AT
 github.com/livekit/mageutil v0.0.0-20250511045019-0f1ff63f7731/go.mod h1:Rs3MhFwutWhGwmY1VQsygw28z5bWcnEYmS1OG9OxjOQ=
 github.com/livekit/mediatransportutil v0.0.0-20260501135216-8818f1b77e59 h1:lWRMrb4ReRJu/e/BAp1kpT6fQOjS8WjCxdp0PGjgrBc=
 github.com/livekit/mediatransportutil v0.0.0-20260501135216-8818f1b77e59/go.mod h1:RCd46PT+6sEztld6XpkCrG1xskb0u3SqxIjy4G897Ss=
-github.com/livekit/protocol v1.45.8-0.20260506075942-ff4d6b682dc7 h1:MR+ZMMPFas+H0WXg4N1WdSZwhDByqz16/Ayh+Tuc9XE=
-github.com/livekit/protocol v1.45.8-0.20260506075942-ff4d6b682dc7/go.mod h1:KEPIJ/ZdMFQ9tmmfv/uT9TjQEuEcZupCZBabuRGEC1k=
+github.com/livekit/protocol v1.45.8-0.20260505211410-5dd801462b33 h1:mr5ALVvQhQ7sdvaRAM5vNWPtBjmLSM1C2vLHOgzqwBs=
+github.com/livekit/protocol v1.45.8-0.20260505211410-5dd801462b33/go.mod h1:Q4uw9Bkz7ucNxPP/lcVj6IkVMYzlq3TwYo2TRFL6BN0=
 github.com/livekit/psrpc v0.7.1 h1:ms37az0QTD3UXIWuUC5D/SkmKOlRMVRsI261eBWu/Vw=
 github.com/livekit/psrpc v0.7.1/go.mod h1:bZ4iHFQptTkbPnB0LasvRNu/OBYXEu1NA6O5BMFo9kk=
 github.com/mackerelio/go-osstat v0.2.7 h1:TCavZi10wF49bT6iQZ9eT2keGZQpC69MTDfdJej5e94=
diff --git a/pkg/service/ioservice_sip.go b/pkg/service/ioservice_sip.go
index 349be9c85..0140466f2 100644
--- a/pkg/service/ioservice_sip.go
+++ b/pkg/service/ioservice_sip.go
@@ -123,7 +123,6 @@ func (s *IOInfoService) EvaluateSIPDispatchRules(ctx context.Context, req *rpc.E
 	if err != nil {
 		return nil, err
 	}
-	resp.Upgrade()
 	resp.SipTrunkId = trunkID
 	return resp, err
 }
diff --git a/pkg/service/sip.go b/pkg/service/sip.go
index d98d92d33..f714e5698 100644
--- a/pkg/service/sip.go
+++ b/pkg/service/sip.go
@@ -421,7 +421,6 @@ func (s *SIPService) CreateSIPDispatchRule(ctx context.Context, req *livekit.Cre
 	if s.store == nil {
 		return nil, ErrSIPNotConnected
 	}
-	req.DispatchRule.Upgrade()
 	if err := req.Validate(); err != nil {
 		return nil, twirp.WrapError(twirp.NewError(twirp.InvalidArgument, err.Error()), err)
 	}
@@ -630,7 +629,6 @@ func (s *SIPService) CreateSIPParticipantRequest(ctx context.Context, req *livek
 	if s.store == nil {
 		return nil, ErrSIPNotConnected
 	}
-	req.Upgrade()
 	if err := req.Validate(); err != nil {
 		return nil, twirp.WrapError(twirp.NewError(twirp.InvalidArgument, err.Error()), err)
 	}