diff --git a/build.gradle b/build.gradle
index 8b9a4f96..81fa6ed9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -42,7 +42,7 @@ dependencies {
     testImplementation 'commons-io:commons-io:2.15.1'
     testCompileOnly 'org.jetbrains:annotations:24.1.0'
 
-    testImplementation 'org.assertj:assertj-core:3.24.2'
+    testImplementation 'org.assertj:assertj-core:3.25.1'
     testImplementation(platform('org.junit:junit-bom:5.10.1'))
     testImplementation 'org.junit.jupiter:junit-jupiter'
 
diff --git a/fast-double-parser/build.gradle b/fast-double-parser/build.gradle
index 70134d15..bcb729aa 100644
--- a/fast-double-parser/build.gradle
+++ b/fast-double-parser/build.gradle
@@ -10,7 +10,7 @@ dependencies {
     // Multi-release jar, 8+ compatible
     implementation 'ch.randelshofer:fastdoubleparser:0.9.0'
 
-    testImplementation 'org.assertj:assertj-core:3.24.2'
+    testImplementation 'org.assertj:assertj-core:3.25.1'
     testImplementation(platform('org.junit:junit-bom:5.10.1'))
     testImplementation 'org.junit.jupiter:junit-jupiter'
 }