diff --git a/build.gradle b/build.gradle
index 6ddeb41..2ba1770 100644
--- a/build.gradle
+++ b/build.gradle
@@ -136,7 +136,7 @@ ext {
     slf4jVersion = "1.7.36"
     openSearchVersion = "2.16.0"
 
-    testcontainersVersion = "1.20.3"
+    testcontainersVersion = "1.20.4"
 }
 
 sourceSets {