diff --git a/pom.xml b/pom.xml
index 3183e88..248ecea 100644
--- a/pom.xml
+++ b/pom.xml
@@ -113,7 +113,7 @@
         <dependency>
             <groupId>org.eclipse.mylyn.github</groupId>
             <artifactId>org.eclipse.egit.github.core</artifactId>
-            <version>5.2.0.201812061821-r</version>
+            <version>5.7.0.202001151323-m1</version>
         </dependency>
 
         <dependency>
diff --git a/src/main/java/org/jenkinsci/plugins/pipeline/github/GitHubHelper.java b/src/main/java/org/jenkinsci/plugins/pipeline/github/GitHubHelper.java
index fe4630b..0af1758 100644
--- a/src/main/java/org/jenkinsci/plugins/pipeline/github/GitHubHelper.java
+++ b/src/main/java/org/jenkinsci/plugins/pipeline/github/GitHubHelper.java
@@ -18,6 +18,9 @@
 
 import javax.annotation.Nonnull;
 import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.Proxy;
+import java.net.SocketAddress;
 import java.net.URI;
 import java.util.Collections;
 import java.util.List;
@@ -61,6 +64,13 @@ public static ExtendedGitHubClient getGitHubClient(@Nonnull final Job<?,?> job)
             URI uri = URI.create(gitHubSource.getApiUri());
             ExtendedGitHubClient client = new ExtendedGitHubClient(uri.getHost(), uri.getPort(), uri.getScheme());
 
+            String proxyHost = System.getenv("PROXY_HOST");
+            String proxyPort = System.getenv("PROXY_PORT");
+            if (proxyHost != null && proxyPort != null) {
+                SocketAddress addr = new InetSocketAddress(proxyHost, Integer.parseInt(proxyPort));
+                client.setProxy(new Proxy(Proxy.Type.HTTP, addr));
+            }
+
             // configure credentials
             if (gitHubSource.getCredentialsId() != null) {
                 StandardCredentials credentials = Connector.lookupScanCredentials(