diff --git a/.idea/libraries/Eclipse.xml b/.idea/libraries/Eclipse.xml
index 1872f4df7594..b22d184e603f 100644
--- a/.idea/libraries/Eclipse.xml
+++ b/.idea/libraries/Eclipse.xml
@@ -1,7 +1,7 @@
 <component name="libraryTable">
   <library name="Eclipse">
     <CLASSES>
-      <root url="jar://$PROJECT_DIR$/lib/ecj-4.4.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/ecj-4.5.1.jar!/" />
     </CLASSES>
     <JAVADOC />
     <SOURCES />
diff --git a/lib/ecj-4.4.jar b/lib/ecj-4.4.jar
deleted file mode 100644
index 98f82dc592c4..000000000000
Binary files a/lib/ecj-4.4.jar and /dev/null differ
diff --git a/lib/ecj-4.5.1.jar b/lib/ecj-4.5.1.jar
new file mode 100644
index 000000000000..f2aad99d8813
Binary files /dev/null and b/lib/ecj-4.5.1.jar differ
diff --git a/lib/required_for_dist.txt b/lib/required_for_dist.txt
index 668b5a11057f..359377750e57 100644
--- a/lib/required_for_dist.txt
+++ b/lib/required_for_dist.txt
@@ -16,7 +16,7 @@ httpcore-4.4.1.jar
 httpclient-4.4.1.jar
 fluent-hc-4.4.1.jar
 httpmime-4.4.1.jar
-ecj-4.4.jar
+ecj-4.5.1.jar
 groovy-all-2.3.9.jar
 gson-2.3.1.jar
 guava-17.0.jar