diff --git a/go.mod b/go.mod
index a37e207f..02eaf38c 100644
--- a/go.mod
+++ b/go.mod
@@ -21,6 +21,8 @@ require (
 	gotest.tools/v3 v3.5.1
 )
 
+require go.yaml.in/yaml/v4 v4.0.0-rc.2
+
 require (
 	cyphar.com/go-pathrs v0.2.1 // indirect
 	dario.cat/mergo v1.0.0 // indirect
@@ -100,7 +102,7 @@ require (
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
 
-replace github.com/nektos/act => gitea.com/gitea/act v0.261.7-0.20251202193638-5417d3ac6742
+replace github.com/nektos/act => gitea.com/gitea/act v0.261.8
 
 replace github.com/go-git/go-git/v5 => github.com/go-git/go-git/v5 v5.16.2
 
diff --git a/go.sum b/go.sum
index 57f2e211..5ea1f432 100644
--- a/go.sum
+++ b/go.sum
@@ -8,8 +8,8 @@ cyphar.com/go-pathrs v0.2.1 h1:9nx1vOgwVvX1mNBWDu93+vaceedpbsDqo+XuBGL40b8=
 cyphar.com/go-pathrs v0.2.1/go.mod h1:y8f1EMG7r+hCuFf/rXsKqMJrJAUoADZGNh5/vZPKcGc=
 dario.cat/mergo v1.0.0 h1:AGCNq9Evsj31mOgNPcLyXc+4PNABt905YmuqPYYpBWk=
 dario.cat/mergo v1.0.0/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
-gitea.com/gitea/act v0.261.7-0.20251202193638-5417d3ac6742 h1:ulcquQluJbmNASkh6ina70LvcHEa9eWYfQ+DeAZ0VEE=
-gitea.com/gitea/act v0.261.7-0.20251202193638-5417d3ac6742/go.mod h1:Pg5C9kQY1CEA3QjthjhlrqOC/QOT5NyWNjOjRHw23Ok=
+gitea.com/gitea/act v0.261.8 h1:rUWB5GOZOubfe2VteKb7XP3HRIbcW3UUmfh7bVAgQcA=
+gitea.com/gitea/act v0.261.8/go.mod h1:lTp4136rwbZiZS3ZVQeHCvd4qRAZ7LYeiRBqOSdMY/4=
 github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24 h1:bvDV9vkmnHYOMsOr4WLk+Vo07yKIzd94sVoIqshQ4bU=
 github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24/go.mod h1:8o94RPi1/7XTJvwPpRSzSUedZrtlirdB3r9Z20bi2f8=
 github.com/Azure/go-ansiterm v0.0.0-20230124172434-306776ec8161 h1:L/gRVlceqvL25UVaW/CKtUDjefjrs0SPonmDGUVOYP0=
@@ -227,6 +227,8 @@ go.opentelemetry.io/otel/trace v1.28.0 h1:GhQ9cUuQGmNDd5BTCP2dAvv75RdMxEfTmYejp+
 go.opentelemetry.io/otel/trace v1.28.0/go.mod h1:jPyXzNPg6da9+38HEwElrQiHlVMTnVfM3/yv2OlIHaI=
 go.opentelemetry.io/proto/otlp v1.0.0 h1:T0TX0tmXU8a3CbNXzEKGeU5mIVOdf0oykP+u2lIVU/I=
 go.opentelemetry.io/proto/otlp v1.0.0/go.mod h1:Sy6pihPLfYHkr3NkUbEhGHFhINUSI/v80hjKIs5JXpM=
+go.yaml.in/yaml/v4 v4.0.0-rc.2 h1:/FrI8D64VSr4HtGIlUtlFMGsm7H7pWTbj6vOLVZcA6s=
+go.yaml.in/yaml/v4 v4.0.0-rc.2/go.mod h1:aZqd9kCMsGL7AuUv/m/PvWLdg5sjJsZ4oHDEnfPPfY0=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
diff --git a/internal/app/run/workflow.go b/internal/app/run/workflow.go
index a6fbb71c..5e3a6127 100644
--- a/internal/app/run/workflow.go
+++ b/internal/app/run/workflow.go
@@ -11,7 +11,7 @@ import (
 
 	runnerv1 "code.gitea.io/actions-proto-go/runner/v1"
 	"github.com/nektos/act/pkg/model"
-	"gopkg.in/yaml.v3"
+	"go.yaml.in/yaml/v4"
 )
 
 func generateWorkflow(task *runnerv1.Task) (*model.Workflow, string, error) {