Story highlights The child was involved in an ATV accident

Her stepfather posted that she is getting "better and better"

(CNN) The 8-year-old daughter of Jamie Lynn Spears is doing "better and better" following an ATV accident, according to her family.

Jamie Watson, who is the stepfather of Spears' daughter, Maddie, posted a picture with the words "Believe in Miracles" on Instagram Tuesday.

"Thank you to everyone for the prayers," the caption said. "Maddie is doing better and better. Thank y'all so much."

Thank you to everyone for the prayers. Maddie is doing better and better. Thank y'all so much. A photo posted by Jamie (@jamiewatson985) on Feb 7, 2017 at 2:02pm PST

Later Tuesday, Maddie's aunt, Britney Spears, also posted an update on social media. The pop star tweeted she was grateful to share that her niece was "making"progress" and asked for continued prayers.

The child was hospitalized Sunday after accidentally steering her ATV into a pond on her family's Louisiana property, according to a statement from Tangipahoa Parish Sheriff Daniel Edwards,

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