Update MuPDF to 1.20.1.
diff --git a/app/build.gradle b/app/build.gradle
index ec994b7..59db3b3 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,13 +1,13 @@
 apply plugin: 'com.android.application'
 
 group = 'com.artifex.mupdf'
-version = '1.20.0'
+version = '1.20.1a'
 
 dependencies {
 	if (file('../lib/build.gradle').isFile())
 		api project(':lib')
 	else
-		api 'com.artifex.mupdf:viewer:1.20.0'
+		api 'com.artifex.mupdf:viewer:1.20.1a'
 }
 
 android {
@@ -15,8 +15,8 @@
 	defaultConfig {
 		minSdkVersion 21
 		targetSdkVersion 31
-		versionName '1.20.0'
-		versionCode 110
+		versionName '1.20.1a'
+		versionCode 111
 	}
 
 	splits {
diff --git a/jni b/jni
index 2232804..1c1130a 160000
--- a/jni
+++ b/jni
@@ -1 +1 @@
-Subproject commit 2232804acba9df5c97b28329d7ee5f4c025d4920
+Subproject commit 1c1130a36c09934323898918e1014e93fb4efaed
diff --git a/lib/build.gradle b/lib/build.gradle
index 69c3009..0199439 100644
--- a/lib/build.gradle
+++ b/lib/build.gradle
@@ -2,14 +2,14 @@
 apply plugin: 'maven-publish'
 
 group = 'com.artifex.mupdf'
-version = '1.20.0'
+version = '1.20.1a'
 
 dependencies {
 	implementation 'androidx.appcompat:appcompat:1.1.+'
 	if (file('../jni/build.gradle').isFile())
 		api project(':jni')
 	else
-		api 'com.artifex.mupdf:fitz:1.20.0'
+		api 'com.artifex.mupdf:fitz:1.20.1'
 }
 
 android {