diff --git a/divviup/build.gradle.kts b/divviup/build.gradle.kts
index 5493392..64a5e1e 100644
--- a/divviup/build.gradle.kts
+++ b/divviup/build.gradle.kts
@@ -50,7 +50,7 @@ dependencies {
     testImplementation(project(":divviup:commontest"))
     testImplementation("junit:junit:4.13.2")
     testImplementation("com.squareup.okhttp3:mockwebserver:4.12.0")
-    testImplementation("org.testcontainers:testcontainers:1.19.3")
+    testImplementation("org.testcontainers:testcontainers:1.19.4")
     testImplementation("com.fasterxml.jackson.core:jackson-databind:2.16.1")
     testImplementation("ch.qos.logback:logback-core:1.4.14")
     testImplementation("ch.qos.logback:logback-classic:1.4.14")