diff --git a/core/pom.xml b/core/pom.xml
index ea3d53e7..174a18d3 100755
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -41,12 +41,12 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.4</version>
+            <version>4.5</version>
         </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>fluent-hc</artifactId>
-            <version>4.4</version>
+            <version>4.5</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
diff --git a/opentsdbreader/pom.xml b/opentsdbreader/pom.xml
index 9f976a34..f2263726 100644
--- a/opentsdbreader/pom.xml
+++ b/opentsdbreader/pom.xml
@@ -21,7 +21,7 @@
         <commons-lang3.version>3.3.2</commons-lang3.version>
 
         <!-- http -->
-        <httpclient.version>4.4</httpclient.version>
+        <httpclient.version>4.5</httpclient.version>
         <commons-io.version>2.4</commons-io.version>
 
         <!-- json -->
diff --git a/tsdbreader/pom.xml b/tsdbreader/pom.xml
index 64b0adce..0f990234 100644
--- a/tsdbreader/pom.xml
+++ b/tsdbreader/pom.xml
@@ -21,7 +21,7 @@
         <commons-lang3.version>3.3.2</commons-lang3.version>
 
         <!-- http -->
-        <httpclient.version>4.4</httpclient.version>
+        <httpclient.version>4.5</httpclient.version>
         <commons-io.version>2.4</commons-io.version>
 
         <!-- json -->
diff --git a/tsdbwriter/pom.xml b/tsdbwriter/pom.xml
index 800ee86c..1fb7c1e0 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>4.4</httpclient.version>
+        <httpclient.version>4.5</httpclient.version>
         <commons-io.version>2.4</commons-io.version>
 
         <!-- json -->