diff --git a/tools/ivy.xml b/tools/ivy.xml
index 9ab81012b4..cc339f947f 100644
--- a/tools/ivy.xml
+++ b/tools/ivy.xml
@@ -28,7 +28,7 @@
         <dependency org="com.github.spotbugs" name="spotbugs" rev="4.9.0" conf="spotbugs->default"/>
         <dependency org="com.github.spotbugs" name="spotbugs-ant" rev="4.9.0" conf="spotbugs->default"/>
         <!-- errorprone->default -->
-        <dependency org="com.google.errorprone" name="error_prone_core" rev="2.36.0" conf="errorprone->default"/>
+        <dependency org="com.google.errorprone" name="error_prone_core" rev="2.31.0" conf="errorprone->default"/>
         <!-- animal->default -->
         <dependency org="org.codehaus.mojo" name="animal-sniffer-ant-tasks" rev="1.24" conf="animal->default"/>
     </dependencies>