diff --git a/tx-signer/pom.xml b/tx-signer/pom.xml
index 027a22d..a5f2e15 100644
--- a/tx-signer/pom.xml
+++ b/tx-signer/pom.xml
@@ -17,7 +17,7 @@
         <dependency>
             <groupId>com.google.crypto.tink</groupId>
             <artifactId>tink</artifactId>
-            <version>1.1.1</version>
+            <version>1.5.0</version>
             <exclusions>
                 <exclusion>
                     <groupId>com.google.protobuf</groupId>