diff --git a/core/pom.xml b/core/pom.xml
index 7d87171b..1f98d49c 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -217,8 +217,8 @@
                                         <urn>org.hamcrest:hamcrest-core:1.3:jar:null:test:42a25dc3219429f0e5d060061f71acb49bf010a0</urn>
                                         <urn>org.jacoco:jacoco-maven-plugin:0.7.5.201505241946:maven-plugin:null:runtime:0a5e4dbbcd9b00e5ee42d928e10ab84f6f0b0835</urn>
                                         <urn>org.objenesis:objenesis:1.2:jar:null:test:bfcb0539a071a4c5a30690388903ac48c0667f2a</urn>
-                                        <urn>com.squareup.okhttp3:okhttp:3.6.0:jar:null:runtime:69edde9fc4b01c9fd51d25b83428837478c27254</urn>
-                                        <urn>com.squareup.okio:okio:1.11.0:jar:null:runtime:840897fcd7223a8143f1d9b6f69714e7be34fd50</urn>
+                                        <urn>com.squareup.okhttp3:okhttp:3.9.1:jar:null:runtime:84b4b7d1c4a238e7899972b7446c250691e65f1f</urn>
+                                        <urn>com.squareup.okio:okio:1.13.0:jar:null:runtime:a9283170b7305c8d92d25aff02a6ab7e45d06cbe</urn>
                                         <urn>org.slf4j:slf4j-api:1.7.20:jar:null:compile:867d63093eff0a0cb527bf13d397d850af3dcae3</urn>
                                         <urn>org.slf4j:slf4j-jdk14:1.7.20:jar:null:test:b568c92eec50edc922c52b3e759982579170c2be</urn>
                                         <urn>org.sonatype.plugins:nexus-staging-maven-plugin:1.6.5:maven-plugin:null:runtime:455ca2aa8cd14a06608f1538bd6a1efd09561563</urn>
@@ -442,7 +442,7 @@
         <dependency>
             <groupId>com.squareup.okhttp3</groupId>
             <artifactId>okhttp</artifactId>
-            <version>3.6.0</version>
+            <version>3.9.1</version>
         </dependency>
     </dependencies>