diff --git a/tsdbwriter/pom.xml b/tsdbwriter/pom.xml
index fd4cc6f..7f80e4d 100644
--- a/tsdbwriter/pom.xml
+++ b/tsdbwriter/pom.xml
@@ -21,7 +21,7 @@
         <commons-lang3.version>3.3.2</commons-lang3.version>
 
         <!-- http -->
-        <httpclient.version>4.5</httpclient.version>
+        <httpclient.version>4.5.13</httpclient.version>
         <commons-io.version>2.4</commons-io.version>
 
         <!-- json -->