diff --git a/gradle.properties b/gradle.properties
index b1007a2d38..5fb14c9d4e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -185,7 +185,7 @@ hamcrestVersion=2.2
 # Note: if changing this, we might need to match with the picard version in the SequenceAnalysis module build.gradle
 htsjdkVersion=4.3.0
 
-httpclient5Version=5.5.2
+httpclient5Version=5.6.4
 httpcore5Version=5.4.3
 
 # Not used directly, but these are widely used transitive dependencies