diff --git a/gh-act b/gh-act
index 62b960e..d5374fa 100755
--- a/gh-act
+++ b/gh-act
@@ -243,10 +243,12 @@ function user_json_ {
 }
 
 function user_json {
-    if [ -f "${TEMPFILE_DIR}/users/$1.json" ]; then
-        cat "${TEMPFILE_DIR}/users/$1.json"
+    USER_JSON_FILENAME=${1////_}
+    USER_JSON_PATH="${TEMPFILE_DIR}/users/${USER_JSON_FILENAME}.json"
+    if [ -f "${USER_JSON_PATH}" ]; then
+        cat "${USER_JSON_PATH}"
     else
-        user_json_ "$1" | tee "${TEMPFILE_DIR}/users/$1.json"
+        user_json_ "$1" | tee "${USER_JSON_PATH}"
     fi
 }
 
@@ -581,6 +583,11 @@ function issue_event_envs() {
         fi
         ISSUE_COMMENT_USER_JSON=$(user_json "${ISSUE_COMMENT_AUTHOR}")
     fi
+
+    if [[ "${ISSUE_URL}" =~ .*pull.* ]]; then
+        ISSSUE_PULL_REQUEST_JSON=$(parts_json issue_pull_request)
+    fi
+
     HEAD_OWNER="${OWNER}"
     HEAD_REPO="${REPO}"
     HEAD_USER="${ISSUE_AUTHOR}"
diff --git a/templates/issue_comment.json b/templates/issue_comment.json
index c10600c..44e0129 100644
--- a/templates/issue_comment.json
+++ b/templates/issue_comment.json
@@ -4,9 +4,9 @@
     "author_association": "${ISSUE_COMMENT_AUTHOR_ASSOCIATION}",
     "body": "${ISSUE_COMMENT_BODY}",
     "created_at": "${ISSUE_COMMENT_CREATED_AT}",
-    "html_url": "https://${GITHUB_HOSTNAME}/${OWNER}/${REPO}/issues/${ISSUE_NUMBER}#issuecomment-${ISSUE_COMMENT_ID}",
+    "html_url": "https://${GITHUB_HOSTNAME}/${OWNER}/${REPO}/issues/${GHACT_ISSUE_NUMBER}#issuecomment-${ISSUE_COMMENT_ID}",
     "id": ${ISSUE_COMMENT_ID},
-    "issue_url": "https://${GITHUB_API}/repos/${OWNER}/${REPO}/issues/${ISSUE_NUMBER}",
+    "issue_url": "https://${GITHUB_API}/repos/${OWNER}/${REPO}/issues/${GHACT_ISSUE_NUMBER}",
     "node_id": "",
     "performed_via_github_app": null,
     "reactions": {
diff --git a/templates/parts/issue.json b/templates/parts/issue.json
index fd5397b..5a98ab4 100644
--- a/templates/parts/issue.json
+++ b/templates/parts/issue.json
@@ -18,6 +18,7 @@
     "node_id": "${ISSUE_NODE_ID}",
     "number": ${ISSUE_NUMBER},
     "performed_via_github_app": null,
+    "pull_request": ${ISSSUE_PULL_REQUEST_JSON:-null},
     "reactions": {
       "+1": ${ISSUE_REACTION_THUMBS_UP_COUNT:-0},
       "-1": ${ISSUE_REACTION_THUMBS_DOWN_COUNT:-0},
diff --git a/templates/parts/issue_pull_request.json b/templates/parts/issue_pull_request.json
new file mode 100644
index 0000000..a4c6175
--- /dev/null
+++ b/templates/parts/issue_pull_request.json
@@ -0,0 +1,7 @@
+{
+  "diff_url": "${ISSUE_URL}.diff",
+  "html_url": "${ISSUE_URL}",
+  "merged_at": null,
+  "patch_url": "${ISSUE_URL}.patch",
+  "url": "https://${GITHUB_API}/repos/${OWNER}/${REPO}/pulls/${GHACT_ISSUE_NUMBER}"
+}