diff --git a/nix/templates/harness-base.nix b/nix/templates/harness-base.nix
index b1ad1dd8..e1bd2879 100644
--- a/nix/templates/harness-base.nix
+++ b/nix/templates/harness-base.nix
@@ -431,7 +431,7 @@
       path = [
         pkgs.curl
         pkgs.coreutils
-        pkgs.librsvg
+        pkgs.python3
       ];
       script = ''
         ICON=/etc/hyperhive/icon.svg
@@ -452,16 +452,9 @@
           exit 0
         fi
         TOKEN=$(cat "$TOKEN_FILE")
-        # Rasterize SVG → PNG (Forgejo's Go image library can't decode SVG).
-        PNG=$(mktemp --suffix=.png)
-        if ! rsvg-convert -f png -w 512 -h 512 "$ICON" -o "$PNG" 2>/dev/null; then
-          echo "forge-avatar-sync: rsvg-convert failed; skipping"
-          rm -f "$PNG"
-          exit 0
-        fi
-        IMAGE=$(base64 -w 0 < "$PNG")
-        rm -f "$PNG"
-        DATA_URI="data:image/png;base64,$IMAGE"
+        # Base64-encode the SVG and wrap in a data URI.
+        IMAGE=$(base64 -w 0 < "$ICON")
+        DATA_URI="data:image/svg+xml;base64,$IMAGE"
         RESP=$(curl -sf --max-time 10 \
           -X POST "$FORGE_URL/api/v1/user/avatar" \
           -H "Authorization: token $TOKEN" \