diff --git a/fdroidserver/update.py b/fdroidserver/update.py
index 99fb80e5..3a74b428 100644
--- a/fdroidserver/update.py
+++ b/fdroidserver/update.py
@@ -44,7 +44,7 @@ from . import metadata
 from .common import SdkToolsPopen
 from .exception import BuildException, FDroidException
 
-METADATA_VERSION = 18
+METADATA_VERSION = 19
 
 # less than the valid range of versionCode, i.e. Java's Integer.MIN_VALUE
 UNSET_VERSION_CODE = -0x100000000
@@ -976,6 +976,8 @@ def scan_apk(apk_file):
     apk['sig'] = getsig(apk_file)
     if not apk['sig']:
         raise BuildException("Failed to get apk signature")
+    apk['signer'] = common.apk_signer_fingerprint(os.path.join(os.getcwd(),
+                                                               apk_file))
 
     # Get size of the APK
     apk['size'] = os.path.getsize(apk_file)
diff --git a/tests/metadata/apk/info.guardianproject.urzip.yaml b/tests/metadata/apk/info.guardianproject.urzip.yaml
index 2234cf1f..a2312cdd 100644
--- a/tests/metadata/apk/info.guardianproject.urzip.yaml
+++ b/tests/metadata/apk/info.guardianproject.urzip.yaml
@@ -12,6 +12,7 @@ icons_src:
 minSdkVersion: '4'
 packageName: info.guardianproject.urzip
 sig: e0ecb5fc2d63088e4a07ae410a127722
+signer: 7eabd8c15de883d1e82b5df2fd4f7f769e498078e9ad6dc901f0e96db77ceac3
 size: 9969
 targetSdkVersion: '18'
 uses-permission: []
diff --git a/tests/metadata/apk/org.dyndns.fules.ck.yaml b/tests/metadata/apk/org.dyndns.fules.ck.yaml
index cbb62836..2f382c48 100644
--- a/tests/metadata/apk/org.dyndns.fules.ck.yaml
+++ b/tests/metadata/apk/org.dyndns.fules.ck.yaml
@@ -24,6 +24,7 @@ nativecode:
 - x86_64
 packageName: org.dyndns.fules.ck
 sig: 9bf7a6a67f95688daec75eab4b1436ac
+signer: 9326a2cc1a2f148202bc7837a0af3b81200bd37fd359c9e13a2296a71d342056
 size: 132453
 targetSdkVersion: '8'
 uses-permission:
diff --git a/tests/repo/index.xml b/tests/repo/index.xml
index a2eb17e3..b10b7c0a 100644
--- a/tests/repo/index.xml
+++ b/tests/repo/index.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <fdroid>
-	<repo icon="fdroid-icon.png" name="My First F-Droid Repo Demo" pubkey="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" timestamp="1480431575" url="https://MyFirstFDroidRepo.org/fdroid/repo" version="18">
+	<repo icon="fdroid-icon.png" name="My First F-Droid Repo Demo" pubkey="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" timestamp="1480431575" url="https://MyFirstFDroidRepo.org/fdroid/repo" version="19">
 		<description>This is a repository of apps to be used with F-Droid. Applications in this repository are either official binaries built by the original application developers, or are binaries built from source by the admin of f-droid.org using the tools on https://gitlab.com/u/fdroid. </description>
 		<mirror>http://foobarfoobarfoobar.onion/fdroid/repo</mirror>
 		<mirror>https://foo.bar/fdroid/repo</mirror>