diff --git a/types/common.go b/types/common.go
index df9223c..f25b84f 100644
--- a/types/common.go
+++ b/types/common.go
@@ -30,11 +30,9 @@ type Permission struct {
 	Push bool `json:"push,omitempty"`
 }
 
-// StateType — StateType issue state type
-// StateType has no fields in the swagger spec.
-type StateType struct{}
+// StateType is the state of an issue or PR: "open", "closed".
+type StateType string
 
-// TimeStamp — TimeStamp defines a timestamp
-// TimeStamp has no fields in the swagger spec.
-type TimeStamp struct{}
+// TimeStamp is a Forgejo timestamp string.
+type TimeStamp string
 
diff --git a/types/issue.go b/types/issue.go
index 841f6ae..f411c8e 100644
--- a/types/issue.go
+++ b/types/issue.go
@@ -71,7 +71,7 @@ type Issue struct {
 	PullRequest *PullRequestMeta `json:"pull_request,omitempty"`
 	Ref string `json:"ref,omitempty"`
 	Repository *RepositoryMeta `json:"repository,omitempty"`
-	State *StateType `json:"state,omitempty"`
+	State StateType `json:"state,omitempty"`
 	Title string `json:"title,omitempty"`
 	URL string `json:"url,omitempty"`
 	Updated time.Time `json:"updated_at,omitempty"`
diff --git a/types/milestone.go b/types/milestone.go
index 6d294d5..fab5844 100644
--- a/types/milestone.go
+++ b/types/milestone.go
@@ -30,7 +30,7 @@ type Milestone struct {
 	Description string `json:"description,omitempty"`
 	ID int64 `json:"id,omitempty"`
 	OpenIssues int64 `json:"open_issues,omitempty"`
-	State *StateType `json:"state,omitempty"`
+	State StateType `json:"state,omitempty"`
 	Title string `json:"title,omitempty"`
 	Updated time.Time `json:"updated_at,omitempty"`
 }
diff --git a/types/notification.go b/types/notification.go
index 3d84aa7..dccc380 100644
--- a/types/notification.go
+++ b/types/notification.go
@@ -15,7 +15,7 @@ type NotificationSubject struct {
 	HTMLURL string `json:"html_url,omitempty"`
 	LatestCommentHTMLURL string `json:"latest_comment_html_url,omitempty"`
 	LatestCommentURL string `json:"latest_comment_url,omitempty"`
-	State *StateType `json:"state,omitempty"`
+	State StateType `json:"state,omitempty"`
 	Title string `json:"title,omitempty"`
 	Type *NotifySubjectType `json:"type,omitempty"`
 	URL string `json:"url,omitempty"`
diff --git a/types/pr.go b/types/pr.go
index 6aa28ed..274d649 100644
--- a/types/pr.go
+++ b/types/pr.go
@@ -87,7 +87,7 @@ type PullRequest struct {
 	RequestedReviewers []*User `json:"requested_reviewers,omitempty"`
 	RequestedReviewersTeams []*Team `json:"requested_reviewers_teams,omitempty"`
 	ReviewComments int64 `json:"review_comments,omitempty"` // number of review comments made on the diff of a PR review (not including comments on commits or issues in a PR)
-	State *StateType `json:"state,omitempty"`
+	State StateType `json:"state,omitempty"`
 	Title string `json:"title,omitempty"`
 	URL string `json:"url,omitempty"`
 	Updated time.Time `json:"updated_at,omitempty"`