diff --git a/.changeset/cruel-frogs-accept.md b/.changeset/cruel-frogs-accept.md
new file mode 100644
index 0000000000..2e0270e96f
--- /dev/null
+++ b/.changeset/cruel-frogs-accept.md
@@ -0,0 +1,7 @@
+---
+'@leafygreen-ui/modal': patch
+'@leafygreen-ui/confirmation-modal': patch
+'@leafygreen-ui/marketing-modal': patch
+---
+
+Add explicit `margin: auto;` to `<dialog>` element styles to prevent `margin` property being reset
diff --git a/packages/modal/src/Modal/Modal.styles.ts b/packages/modal/src/Modal/Modal.styles.ts
index e8b3c99d82..b81f691a46 100644
--- a/packages/modal/src/Modal/Modal.styles.ts
+++ b/packages/modal/src/Modal/Modal.styles.ts
@@ -59,6 +59,7 @@ const getBaseDialogStyles = (theme: Theme) => css`
   background-color: ${color[theme].background[Variant.Primary][
     InteractionState.Default
   ]};
+  margin: auto;
   padding: ${spacing[1000]}px ${spacing[900]}px;
   color: ${color[theme].text[Variant.Primary][InteractionState.Default]};
   font-family: ${fontFamilies.default};