diff --git a/.changes/proguard-keep-json-deserializer-classes.md b/.changes/proguard-keep-json-deserializer-classes.md
new file mode 100644
index 000000000000..4d0f509f1fe6
--- /dev/null
+++ b/.changes/proguard-keep-json-deserializer-classes.md
@@ -0,0 +1,5 @@
+---
+"tauri": patch:bug
+---
+
+Change the Android Proguard rules to keep custom JSON deserializers.
diff --git a/core/tauri/mobile/android/proguard-rules.pro b/core/tauri/mobile/android/proguard-rules.pro
index a461a5556f35..ab44933621d1 100644
--- a/core/tauri/mobile/android/proguard-rules.pro
+++ b/core/tauri/mobile/android/proguard-rules.pro
@@ -27,3 +27,5 @@
 -keep @app.tauri.annotation.InvokeArg public class * {
   *;
 }
+
+-keep class * extends com.fasterxml.jackson.databind.JsonDeserializer { *; }