Try changing the image's anchor:
There are various options available - to paragraph/character generally works:
Anchoring images
You can anchor images as a character or to a page, paragraph, or
character. The method you choose depends on what you are trying to
achieve.
To Page The image keeps the same position in relation to the page margins. It does not move as you add or delete text or other graphics.
This method is useful when the image does not need to be visually
associated with a particular piece of text. It is often used when
producing newsletters or other documents that are very layout
intensive, or for placing logos in letterheads.
To Paragraph The image is associated with a paragraph and moves with the paragraph. It may be placed in the margin or another
location. This method is useful as an alternative to a table for
placing icons beside paragraphs.
To Character The image is associated with a character but is not in the text sequence. It moves with the paragraph but may be placed in
the margin or another location. This method is similar to anchoring to
a paragraph but cannot be used with drawing objects.
As Character The image is placed in the document like any other character and, therefore, affects the height of the text line and the
line break. The graphic moves with the paragraph as you add or delete
text before the paragraph. This method is useful for keeping images in
sequence in a procedure (by anchoring them as a character in a blank
paragraph) or for adding a small (inline) icon in sequence in a
sentence.
To Frame If the image has been placed in a frame, you can anchor the graphic in a fixed position inside the frame. The frame can then
be anchored to the page, a paragraph, or a character, as required.
Source