diff --git a/common/build.gradle.kts b/common/build.gradle.kts
index 536302e..ecbf0b3 100644
--- a/common/build.gradle.kts
+++ b/common/build.gradle.kts
@@ -36,7 +36,7 @@ dependencies {
 
     testImplementation("org.bouncycastle:bcpg-jdk18on:1.78.1")
 
-    testImplementation("org.junit.jupiter:junit-jupiter-api:5.11.0")
+    testImplementation("org.junit.jupiter:junit-jupiter-api:5.11.3")
     testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.11.2")
 }
 
diff --git a/packet/build.gradle.kts b/packet/build.gradle.kts
index 61b0e6d..d73232d 100644
--- a/packet/build.gradle.kts
+++ b/packet/build.gradle.kts
@@ -23,7 +23,7 @@ dependencies {
 
     implementation("dev.keiji.rfc4648:rfc4648:1.1.0")
 
-    testImplementation("org.junit.jupiter:junit-jupiter-api:5.11.0")
+    testImplementation("org.junit.jupiter:junit-jupiter-api:5.11.3")
     testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.11.2")
 }
 
diff --git a/sample/build.gradle.kts b/sample/build.gradle.kts
index 4565785..5e15f05 100644
--- a/sample/build.gradle.kts
+++ b/sample/build.gradle.kts
@@ -20,7 +20,7 @@ dependencies {
     implementation(project(":packet"))
     implementation(project(":signature-ext"))
 
-    testImplementation("org.junit.jupiter:junit-jupiter-api:5.11.0")
+    testImplementation("org.junit.jupiter:junit-jupiter-api:5.11.3")
     testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.11.2")
 }
 
diff --git a/signature-ext/build.gradle.kts b/signature-ext/build.gradle.kts
index c07b63d..a53cb0c 100644
--- a/signature-ext/build.gradle.kts
+++ b/signature-ext/build.gradle.kts
@@ -24,7 +24,7 @@ dependencies {
     // https://mvnrepository.com/artifact/org.bouncycastle/bcutil-jdk18on
     implementation("org.bouncycastle:bcutil-jdk18on:1.78.1")
 
-    testImplementation("org.junit.jupiter:junit-jupiter-api:5.11.0")
+    testImplementation("org.junit.jupiter:junit-jupiter-api:5.11.3")
     testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.11.2")
 }