The actress took time out from her honeymoon to reflect on how much time has passed since Tina McIntyre was killed off the ITV soap.
She tweeted: "Can't believe it's been a year since Tina Mcintyre died on Corrie...How fast does time fly? Memories last forever."
Michelle accompanied her message with a collage of images featuring Tina in action.
The starlet has clearly been feeling reflective lately, as back in April she marked the one-year anniversary of filming her final scenes on the cobbles.
At the time, she said: "I left Coronation Street a YEAR ago today... Can't believe how quick life goes by. Thankyou to everyone who continually supports me and the journey that I've been on for the past year...You guys make me smile and make me feel very lucky everyday."
It was one year ago today that we saw poor old Tina lose her life after being pushed off a building and hit with a lead pipe. Michelle watched her last moments on the show surrounded by friends, family and lots of tissues!
She tweeted while watching: "It's the end of an era. Thank you to all you lovely people who changed my life, supported and made the last six and a half years so special.
"To you all, I'm eternally grateful. Thank you to Coronation Street for putting me on the most amazing path and allowing me to live my dream. I'm going to miss Tina so much, but a part of her will be with me forever #byebyetina."
Since leaving Corrie, she has starred in BBC drama Ordinary Lies, as well as focusing on other projects including endorsement deals and her own clothing line.
She married ex-TOWIE star Mark Wright last month and they are currently honeymooning in the Maldives.
All you need to know about Mark Wright and Michelle Keegan: