diff --git a/tag.go b/tag.go
index 22b921c..f2519eb 100644
--- a/tag.go
+++ b/tag.go
@@ -13,9 +13,10 @@ func (tp *tagpr) latestPullRequest(ctx context.Context) (*github.PullRequest, er
 	if err != nil {
 		return nil, err
 	}
-	pulls, _, err := tp.gh.PullRequests.ListPullRequestsWithCommit(
+	pulls, resp, err := tp.gh.PullRequests.ListPullRequestsWithCommit(
 		ctx, tp.owner, tp.repo, commitish, nil)
 	if err != nil {
+		showGHError(err, resp)
 		return nil, err
 	}
 	if len(pulls) == 0 {
@@ -77,13 +78,14 @@ func (tp *tagpr) tagRelease(ctx context.Context, pr *github.PullRequest, currVer
 	if err != nil {
 		return nil
 	}
-	releases, _, err := tp.gh.Repositories.GenerateReleaseNotes(
+	releases, resp, err := tp.gh.Repositories.GenerateReleaseNotes(
 		ctx, tp.owner, tp.repo, &github.GenerateNotesOptions{
 			TagName:         nextTag,
 			PreviousTagName: previousTag,
 			TargetCommitish: &targetCommitish,
 		})
 	if err != nil {
+		showGHError(err, resp)
 		return err
 	}
 
@@ -100,7 +102,7 @@ func (tp *tagpr) tagRelease(ctx context.Context, pr *github.PullRequest, currVer
 		return nil
 	}
 	// Don't use GenerateReleaseNote flag and use pre generated one
-	_, _, err = tp.gh.Repositories.CreateRelease(
+	_, resp, err = tp.gh.Repositories.CreateRelease(
 		ctx, tp.owner, tp.repo, &github.RepositoryRelease{
 			TagName:         &nextTag,
 			TargetCommitish: &releaseBranch,
@@ -108,5 +110,9 @@ func (tp *tagpr) tagRelease(ctx context.Context, pr *github.PullRequest, currVer
 			Body:            &releases.Body,
 			Draft:           github.Bool(tp.cfg.ReleaseDraft()),
 		})
-	return err
+	if err != nil {
+		showGHError(err, resp)
+		return err
+	}
+	return nil
 }
diff --git a/tagpr.go b/tagpr.go
index 925cd9f..57644c9 100644
--- a/tagpr.go
+++ b/tagpr.go
@@ -219,8 +219,9 @@ func (tp *tagpr) Run(ctx context.Context) error {
 				if err != nil {
 					continue
 				}
-				issue, _, err := tp.gh.Issues.Get(ctx, tp.owner, tp.repo, prNum)
+				issue, resp, err := tp.gh.Issues.Get(ctx, tp.owner, tp.repo, prNum)
 				if err != nil {
+					showGHError(err, resp)
 					return err
 				}
 				prIssues = append(prIssues, issue)
@@ -259,12 +260,13 @@ func (tp *tagpr) Run(ctx context.Context) error {
 	}
 
 	head := fmt.Sprintf("%s:%s", tp.owner, rcBranch)
-	pulls, _, err := tp.gh.PullRequests.List(ctx, tp.owner, tp.repo,
+	pulls, resp, err := tp.gh.PullRequests.List(ctx, tp.owner, tp.repo,
 		&github.PullRequestListOptions{
 			Head: head,
 			Base: releaseBranch,
 		})
 	if err != nil {
+		showGHError(err, resp)
 		return err
 	}
 
@@ -461,24 +463,28 @@ OUT:
 		body = strings.TrimSpace(stuffs[1])
 	}
 	if currTagPR == nil {
-		pr, _, err := tp.gh.PullRequests.Create(ctx, tp.owner, tp.repo, &github.NewPullRequest{
+		pr, resp, err := tp.gh.PullRequests.Create(ctx, tp.owner, tp.repo, &github.NewPullRequest{
 			Title: github.String(title),
 			Body:  github.String(body),
 			Base:  &releaseBranch,
 			Head:  github.String(head),
 		})
 		if err != nil {
+			showGHError(err, resp)
 			return err
 		}
 		addingLabels = append(addingLabels, autoLableName)
-		_, _, err = tp.gh.Issues.AddLabelsToIssue(
+		_, resp, err = tp.gh.Issues.AddLabelsToIssue(
 			ctx, tp.owner, tp.repo, *pr.Number, addingLabels)
 		if err != nil {
+			showGHError(err, resp)
 			return err
 		}
-		tmpPr, _, err := tp.gh.PullRequests.Get(ctx, tp.owner, tp.repo, *pr.Number)
+		tmpPr, resp, err := tp.gh.PullRequests.Get(ctx, tp.owner, tp.repo, *pr.Number)
 		if err == nil {
 			pr = tmpPr
+		} else {
+			showGHError(err, resp)
 		}
 		b, _ := json.Marshal(pr)
 		tp.setOutput("pull_request", string(b))
@@ -486,19 +492,23 @@ OUT:
 	}
 	currTagPR.Title = github.String(title)
 	currTagPR.Body = github.String(mergeBody(*currTagPR.Body, body))
-	pr, _, err := tp.gh.PullRequests.Edit(ctx, tp.owner, tp.repo, *currTagPR.Number, currTagPR)
+	pr, resp, err := tp.gh.PullRequests.Edit(ctx, tp.owner, tp.repo, *currTagPR.Number, currTagPR)
 	if err != nil {
+		showGHError(err, resp)
 		return err
 	}
 	if len(addingLabels) > 0 {
-		_, _, err := tp.gh.Issues.AddLabelsToIssue(
+		_, resp, err := tp.gh.Issues.AddLabelsToIssue(
 			ctx, tp.owner, tp.repo, *currTagPR.Number, addingLabels)
 		if err != nil {
+			showGHError(err, resp)
 			return err
 		}
-		tmpPr, _, err := tp.gh.PullRequests.Get(ctx, tp.owner, tp.repo, *pr.Number)
+		tmpPr, resp, err := tp.gh.PullRequests.Get(ctx, tp.owner, tp.repo, *pr.Number)
 		if err == nil {
 			pr = tmpPr
+		} else {
+			showGHError(err, resp)
 		}
 	}
 	b, _ := json.Marshal(pr)
@@ -563,8 +573,9 @@ func (tp *tagpr) searchIssues(ctx context.Context, query string) ([]*github.Issu
 	// Fortunately, we don't need to take care of the page count in response, because
 	// the default value of per_page is 30 and we can't specify more than 30 commits due to
 	// the length limit specification of the query string.
-	issues, _, err := tp.gh.Search.Issues(ctx, query, nil)
+	issues, resp, err := tp.gh.Search.Issues(ctx, query, nil)
 	if err != nil {
+		showGHError(err, resp)
 		return nil, err
 	}
 	return issues.Issues, nil
diff --git a/util.go b/util.go
index fd80cc6..3624e2b 100644
--- a/util.go
+++ b/util.go
@@ -3,6 +3,9 @@ package tagpr
 import (
 	"fmt"
 	"os"
+	"strings"
+
+	"github.com/google/go-github/v57/github"
 )
 
 func exists(filename string) bool {
@@ -28,3 +31,22 @@ func setOutput(name, value string) error {
 	_, err = f.WriteString(fmt.Sprintf("%s=%s\n", name, value))
 	return err
 }
+
+func showGHError(err error, resp *github.Response) {
+	title := "failed to request GitHub API"
+	message := err.Error()
+	if resp != nil {
+		respInfo := []string{
+			fmt.Sprintf("status:%d", resp.StatusCode),
+		}
+		for name := range resp.Header {
+			n := strings.ToLower(name)
+			if strings.HasPrefix(n, "x-ratelimit") || n == "x-github-request-id" || n == "retry-after" {
+				respInfo = append(respInfo, fmt.Sprintf("%s:%s", n, resp.Header.Get(name)))
+			}
+		}
+		message += " " + strings.Join(respInfo, ", ")
+	}
+	// https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#setting-an-error-message
+	fmt.Printf("::error title=%s::%s\n", title, message)
+}