diff --git a/build.gradle b/build.gradle
index b0b25b2..174e89c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -48,7 +48,7 @@ dependencies {
     implementation 'org.json:json:20171018'
     implementation 'org.apache.commons:commons-lang3:3.7'
     implementation 'org.bitcoinj:bitcoinj-core:0.14.7'
-    implementation 'com.squareup.okhttp3:okhttp:3.11.0'
+    implementation 'com.squareup.okhttp3:okhttp:4.9.2'
 
     testCompile "junit:junit:4.12"
     testCompile "org.mockito:mockito-core:1.+"