diff --git a/CHANGELOG.md b/CHANGELOG.md
index e821e18741db..0c3f4129ecee 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-- Nothing yet!
+### Fixed
+
+- Don't scan `.geojson` files for classes by default ([#17700](https://github.com/tailwindlabs/tailwindcss/pull/17700))
 
 ## [4.1.4] - 2025-04-14
 
diff --git a/crates/oxide/src/scanner/fixtures/binary-extensions.txt b/crates/oxide/src/scanner/fixtures/binary-extensions.txt
index 5f5b9a7c6dd8..91d8c77cc628 100644
--- a/crates/oxide/src/scanner/fixtures/binary-extensions.txt
+++ b/crates/oxide/src/scanner/fixtures/binary-extensions.txt
@@ -77,6 +77,7 @@ fpx
 fst
 fvt
 g3
+geojson
 gh
 gif
 graffle