diff --git a/GPSTest/build.gradle b/GPSTest/build.gradle
index ee44394c..9154a0fc 100644
--- a/GPSTest/build.gradle
+++ b/GPSTest/build.gradle
@@ -165,8 +165,8 @@ dependencies {
     implementation 'androidx.viewpager2:viewpager2:1.0.0'
 
     // Write GNSS antenna info to JSON
-    implementation 'com.fasterxml.jackson.core:jackson-core:2.12.4'
-    implementation 'com.fasterxml.jackson.core:jackson-databind:2.12.4'
+    implementation 'com.fasterxml.jackson.core:jackson-core:2.14.2'
+    implementation 'com.fasterxml.jackson.core:jackson-databind:2.14.2'
 
     // Multidex - Needed for APIs < 21
     implementation 'androidx.multidex:multidex:2.0.1'
diff --git a/GPSTest/proguard-project.txt b/GPSTest/proguard-project.txt
index bcba002e..1626938d 100644
--- a/GPSTest/proguard-project.txt
+++ b/GPSTest/proguard-project.txt
@@ -28,4 +28,8 @@
 # for SlidingUpPanelLayout and compiling with API 28 (see https://github.com/barbeau/gpstest/issues/273)
 -dontwarn com.sothree.**
 -keep class com.sothree.**
--keep interface com.sothree.**
\ No newline at end of file
+-keep interface com.sothree.**
+
+# for Jackon and outputting AntennaInfo
+-dontwarn java.beans.ConstructorProperties
+-dontwarn java.beans.Transient
\ No newline at end of file