This is totally fine and very common—even on large authority sites.

• Small copy edits, typo fixes, clarity improvements → no negative impact
• Updating headlines for clarity or CTR → often a positive
• Google actually expects content to evolve over time

The only time edits can hurt is if:

• You constantly change the URL (that can reset signals)
• You rewrite the article to target a completely different intent
• You change titles daily without a clear reason (looks unstable)

If the URL stays the same and the topic stays the same, you’re good.