diff --git a/routers/api/v1/repo/pull_review.go b/routers/api/v1/repo/pull_review.go
index 4b481790fb..109778761b 100644
--- a/routers/api/v1/repo/pull_review.go
+++ b/routers/api/v1/repo/pull_review.go
@@ -17,6 +17,7 @@ import (
 	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/routers/api/v1/utils"
+	"code.gitea.io/gitea/services/automerge"
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/convert"
 	issue_service "code.gitea.io/gitea/services/issue"
@@ -381,6 +382,11 @@ func CreatePullReview(ctx *context.APIContext) {
 		return
 	}
 
+	// as a missing / blocking reviews could have blocked a pending automerge let's recheck
+	if reviewType == issues_model.ReviewTypeApprove {
+		automerge.MergeScheduledPullRequest(pr)
+	}
+
 	// convert response
 	apiReview, err := convert.ToPullReview(ctx, review, ctx.Doer)
 	if err != nil {
@@ -473,6 +479,11 @@ func SubmitPullReview(ctx *context.APIContext) {
 		return
 	}
 
+	// as a missing / blocking reviews could have blocked a pending automerge let's recheck
+	if review.Type == issues_model.ReviewTypeApprove {
+		automerge.MergeScheduledPullRequest(pr)
+	}
+
 	// convert response
 	apiReview, err := convert.ToPullReview(ctx, review, ctx.Doer)
 	if err != nil {
@@ -888,7 +899,7 @@ func dismissReview(ctx *context.APIContext, msg string, isDismiss, dismissPriors
 		ctx.Error(http.StatusForbidden, "", "Must be repo admin")
 		return
 	}
-	review, _, isWrong := prepareSingleReview(ctx)
+	review, pr, isWrong := prepareSingleReview(ctx)
 	if isWrong {
 		return
 	}
@@ -898,7 +909,12 @@ func dismissReview(ctx *context.APIContext, msg string, isDismiss, dismissPriors
 		return
 	}
 
-	_, err := pull_service.DismissReview(ctx, review.ID, ctx.Repo.Repository.ID, msg, ctx.Doer, isDismiss, dismissPriors)
+	if pr.Issue.IsClosed {
+		ctx.Error(http.StatusForbidden, "", "not need to dismiss this review because this pr is closed")
+		return
+	}
+
+	comm, err := pull_service.DismissReview(ctx, review.ID, ctx.Repo.Repository.ID, msg, ctx.Doer, isDismiss, dismissPriors)
 	if err != nil {
 		if pull_service.IsErrDismissRequestOnClosedPR(err) {
 			ctx.Error(http.StatusForbidden, "", err)
@@ -908,6 +924,9 @@ func dismissReview(ctx *context.APIContext, msg string, isDismiss, dismissPriors
 		return
 	}
 
+	// as reviews could have blocked a pending automerge let's recheck
+	automerge.MergeScheduledPullRequest(comm.Issue.PullRequest)
+
 	if review, err = issues_model.GetReviewByID(ctx, review.ID); err != nil {
 		ctx.Error(http.StatusInternalServerError, "GetReviewByID", err)
 		return
diff --git a/routers/web/repo/pull_review.go b/routers/web/repo/pull_review.go
index 62f6d71c5e..0da67ec623 100644
--- a/routers/web/repo/pull_review.go
+++ b/routers/web/repo/pull_review.go
@@ -16,6 +16,7 @@ import (
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/web"
+	"code.gitea.io/gitea/services/automerge"
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/context/upload"
 	"code.gitea.io/gitea/services/forms"
@@ -271,6 +272,16 @@ func SubmitReview(ctx *context.Context) {
 		}
 		return
 	}
+
+	// as a missing / blocking reviews could have blocked a pending automerge let's recheck
+	if reviewType == issues_model.ReviewTypeApprove {
+		if err := issue.LoadPullRequest(ctx); err != nil {
+			ctx.ServerError("GetPullRequest", err)
+			return
+		}
+		automerge.MergeScheduledPullRequest(issue.PullRequest)
+	}
+
 	ctx.JSONRedirect(fmt.Sprintf("%s/pulls/%d#%s", ctx.Repo.RepoLink, issue.Index, comm.HashTag()))
 }
 
@@ -287,6 +298,9 @@ func DismissReview(ctx *context.Context) {
 		return
 	}
 
+	// as reviews could have blocked a pending automerge let's recheck
+	automerge.MergeScheduledPullRequest(comm.Issue.PullRequest)
+
 	ctx.Redirect(fmt.Sprintf("%s/pulls/%d#%s", ctx.Repo.RepoLink, comm.Issue.Index, comm.HashTag()))
 }