diff --git a/.changeset/poor-kings-live.md b/.changeset/poor-kings-live.md
new file mode 100644
index 0000000000..8aaca73ab8
--- /dev/null
+++ b/.changeset/poor-kings-live.md
@@ -0,0 +1,5 @@
+---
+"@comet/admin-theme": patch
+---
+
+Adapt size of arrow in `Select` and `Autocomplete` fields according to Comet DXP design
diff --git a/packages/admin/admin-theme/src/componentsTheme/MuiAutocomplete.tsx b/packages/admin/admin-theme/src/componentsTheme/MuiAutocomplete.tsx
index ca6db4cada..c896600b25 100644
--- a/packages/admin/admin-theme/src/componentsTheme/MuiAutocomplete.tsx
+++ b/packages/admin/admin-theme/src/componentsTheme/MuiAutocomplete.tsx
@@ -27,6 +27,9 @@ export const getMuiAutocomplete: GetMuiComponentTheme<"MuiAutocomplete"> = (comp
             "&:hover": {
                 backgroundColor: "transparent",
             },
+            "& .MuiSvgIcon-root": {
+                fontSize: "12px",
+            },
         },
     }),
 });
diff --git a/packages/admin/admin-theme/src/componentsTheme/getCommonSelectTheme.tsx b/packages/admin/admin-theme/src/componentsTheme/getCommonSelectTheme.tsx
index 18a0652198..6287047c6d 100644
--- a/packages/admin/admin-theme/src/componentsTheme/getCommonSelectTheme.tsx
+++ b/packages/admin/admin-theme/src/componentsTheme/getCommonSelectTheme.tsx
@@ -28,4 +28,5 @@ export const commonSelectStyleOverrides = {
 export const getCommonIconStyleOverrides = (palette: Palette) => ({
     right: 10,
     color: palette.grey[900],
+    fontSize: 12,
 });