diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 9d25b3c..f92ab88
--- a/pom.xml
+++ b/pom.xml
@@ -127,7 +127,7 @@
         <dependency>
           <groupId>org.threeten</groupId>
           <artifactId>threetenbp</artifactId>
-          <version>1.3.5</version>
+          <version>1.5.2</version>
         </dependency>
         <dependency>
           <groupId>com.google.guava</groupId>