diff --git a/include/mbgl/style/sources/geojson_source.hpp b/include/mbgl/style/sources/geojson_source.hpp
index f44ac231e..46aaaabc2 100644
--- a/include/mbgl/style/sources/geojson_source.hpp
+++ b/include/mbgl/style/sources/geojson_source.hpp
@@ -80,6 +80,7 @@ public:
     mapbox::base::WeakPtr<Source> makeWeakPtr() override { return weakFactory.makeWeakPtr(); }
 
     bool isUpdateSynchronous() const noexcept;
+    void setOverrideSynchronousUpdate(bool) noexcept;
 
 protected:
     Mutable<Source::Impl> createMutable() const noexcept final;
diff --git a/platform/android/MapLibreAndroid/src/cpp/style/sources/geojson_source.cpp b/platform/android/MapLibreAndroid/src/cpp/style/sources/geojson_source.cpp
index 926664fac..04a1231df 100644
--- a/platform/android/MapLibreAndroid/src/cpp/style/sources/geojson_source.cpp
+++ b/platform/android/MapLibreAndroid/src/cpp/style/sources/geojson_source.cpp
@@ -217,6 +217,10 @@ jboolean GeoJSONSource::isUpdateSynchronous(jni::JNIEnv&) {
     return source.as<style::GeoJSONSource>()->isUpdateSynchronous();
 }
 
+void GeoJSONSource::setOverrideSynchronousUpdate(jni::JNIEnv&, jni::jboolean newOverride) {
+    source.as<style::GeoJSONSource>()->setOverrideSynchronousUpdate(newOverride);
+}
+
 void GeoJSONSource::registerNative(jni::JNIEnv& env) {
     // Lookup the class
     static auto& javaClass = jni::Class<GeoJSONSource>::Singleton(env);
@@ -241,7 +245,8 @@ void GeoJSONSource::registerNative(jni::JNIEnv& env) {
         METHOD(&GeoJSONSource::getClusterChildren, "nativeGetClusterChildren"),
         METHOD(&GeoJSONSource::getClusterLeaves, "nativeGetClusterLeaves"),
         METHOD(&GeoJSONSource::getClusterExpansionZoom, "nativeGetClusterExpansionZoom"),
-        METHOD(&GeoJSONSource::isUpdateSynchronous, "nativeIsUpdateSynchronous"));
+        METHOD(&GeoJSONSource::isUpdateSynchronous, "nativeIsUpdateSynchronous"),
+        METHOD(&GeoJSONSource::setOverrideSynchronousUpdate, "nativeSetOverrideSynchronousUpdate"));
 }
 
 void FeatureConverter::convertJson(std::shared_ptr<std::string> json, ActorRef<GeoJSONDataCallback> callback) {
diff --git a/platform/android/MapLibreAndroid/src/cpp/style/sources/geojson_source.hpp b/platform/android/MapLibreAndroid/src/cpp/style/sources/geojson_source.hpp
index 4e308b1dd..931e0a037 100644
--- a/platform/android/MapLibreAndroid/src/cpp/style/sources/geojson_source.hpp
+++ b/platform/android/MapLibreAndroid/src/cpp/style/sources/geojson_source.hpp
@@ -86,6 +86,7 @@ private:
     void setCollectionSync(jni::JNIEnv&, const jni::Object<JNIType>&);
 
     jboolean isUpdateSynchronous(jni::JNIEnv&);
+    void setOverrideSynchronousUpdate(jni::JNIEnv&, jni::jboolean);
 
 }; // class GeoJSONSource
 
diff --git a/platform/android/MapLibreAndroid/src/main/java/org/maplibre/android/style/sources/GeoJsonSource.kt b/platform/android/MapLibreAndroid/src/main/java/org/maplibre/android/style/sources/GeoJsonSource.kt
index 0fb2657d2..8710f42eb 100644
--- a/platform/android/MapLibreAndroid/src/main/java/org/maplibre/android/style/sources/GeoJsonSource.kt
+++ b/platform/android/MapLibreAndroid/src/main/java/org/maplibre/android/style/sources/GeoJsonSource.kt
@@ -560,9 +560,24 @@ class GeoJsonSource : Source {
     @Keep
     private external fun nativeGetClusterExpansionZoom(feature: Feature): Int
 
+    /**
+     * Overrides the synchronous update flag for this source at runtime.
+     * This is equivalent to constructing the source with [GeoJsonOptions.withSynchronousUpdate],
+     * but can be applied to existing sources loaded from a style JSON.
+     *
+     * @param override whether to force synchronous updates
+     */
+    fun setOverrideSynchronousUpdate(override: Boolean) {
+        checkThread()
+        nativeSetOverrideSynchronousUpdate(override)
+    }
+
     @Keep
     private external fun nativeIsUpdateSynchronous(): Boolean
 
+    @Keep
+    private external fun nativeSetOverrideSynchronousUpdate(override: Boolean)
+
     @Keep
     @Throws(Throwable::class)
     protected external fun finalize()
diff --git a/src/mbgl/style/sources/geojson_source.cpp b/src/mbgl/style/sources/geojson_source.cpp
index 68fb83c9d..f082146a5 100644
--- a/src/mbgl/style/sources/geojson_source.cpp
+++ b/src/mbgl/style/sources/geojson_source.cpp
@@ -132,5 +132,9 @@ bool GeoJSONSource::isUpdateSynchronous() const noexcept {
     return baseImpl->isUpdateSynchronous();
 }
 
+void GeoJSONSource::setOverrideSynchronousUpdate(bool value) noexcept {
+    impl().setOverrideSynchronousUpdate(value);
+}
+
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/sources/geojson_source_impl.cpp b/src/mbgl/style/sources/geojson_source_impl.cpp
index 5f9cd72d2..cf7667b7c 100644
--- a/src/mbgl/style/sources/geojson_source_impl.cpp
+++ b/src/mbgl/style/sources/geojson_source_impl.cpp
@@ -144,7 +144,8 @@ GeoJSONSource::Impl::Impl(std::string id_, Immutable<GeoJSONOptions> options_)
 GeoJSONSource::Impl::Impl(const GeoJSONSource::Impl& other, std::shared_ptr<GeoJSONData> data_)
     : Source::Impl(other),
       options(other.options),
-      data(std::move(data_)) {}
+      data(std::move(data_)),
+      overrideSynchronousUpdate(other.overrideSynchronousUpdate) {}
 
 GeoJSONSource::Impl::~Impl() = default;
 
@@ -161,7 +162,11 @@ std::optional<std::string> GeoJSONSource::Impl::getAttribution() const {
 }
 
 bool GeoJSONSource::Impl::isUpdateSynchronous() const {
-    return options->synchronousUpdate;
+    return options->synchronousUpdate || overrideSynchronousUpdate;
+}
+
+void GeoJSONSource::Impl::setOverrideSynchronousUpdate(bool newOverride) const {
+    overrideSynchronousUpdate = newOverride;
 }
 
 } // namespace style
diff --git a/src/mbgl/style/sources/geojson_source_impl.hpp b/src/mbgl/style/sources/geojson_source_impl.hpp
index c2a73a7eb..0b93136fd 100644
--- a/src/mbgl/style/sources/geojson_source_impl.hpp
+++ b/src/mbgl/style/sources/geojson_source_impl.hpp
@@ -24,10 +24,12 @@ public:
     std::optional<std::string> getAttribution() const final;
 
     bool isUpdateSynchronous() const final;
+    void setOverrideSynchronousUpdate(bool newOverride) const;
 
 private:
     Immutable<GeoJSONOptions> options;
     std::shared_ptr<GeoJSONData> data;
+    mutable bool overrideSynchronousUpdate = false;
 };
 
 } // namespace style