diff --git a/build.xml b/build.xml
index bde0ae62e0844a78acd7b18fc85efb22de96d930..e007c8017a81cf6499822a7bea84a7eaf600ec7f 100644
--- a/build.xml
+++ b/build.xml
@@ -28,7 +28,7 @@
   <property name="selenium_browser" value="firefox" />
   <property name="snooze_multiplier" value="1" /><!-- can be used to slow down tests (selenium only) -->
   <property name="solr_startup_sleep" value="0" />
-  <property name="solr_version" value="7.3.1" />
+  <property name="solr_version" value="7.4.0" />
   <property name="skip_phpdoc" value="false" />
   <property name="phpdoc_version" value="3.0.0-alpha.4" />