diff --git a/app/signing/build.gradle.kts b/app/signing/build.gradle.kts
index 7f8904e90..df857f536 100644
--- a/app/signing/build.gradle.kts
+++ b/app/signing/build.gradle.kts
@@ -20,7 +20,7 @@ val jar by tasks.getting(Jar::class) {
 val shadowJar by tasks.getting(ShadowJar::class) {
     baseName = "zipsigner"
     classifier = null
-    version = "3.0"
+    version = "4.0"
 }
 
 repositories {
diff --git a/build.py b/build.py
index 2a19b78b7..57ec927fe 100755
--- a/build.py
+++ b/build.py
@@ -199,7 +199,7 @@ def sign_zip(unsigned, output, release):
         mv(unsigned, output)
         return
 
-    signer_name = 'zipsigner-3.0.jar'
+    signer_name = 'zipsigner-4.0.jar'
     zipsigner = op.join('app', 'signing', 'build', 'libs', signer_name)
 
     if not op.exists(zipsigner):