diff --git a/modern-treasury-java-client-okhttp/build.gradle.kts b/modern-treasury-java-client-okhttp/build.gradle.kts
index 2d2de829..fcd32f1d 100644
--- a/modern-treasury-java-client-okhttp/build.gradle.kts
+++ b/modern-treasury-java-client-okhttp/build.gradle.kts
@@ -10,5 +10,4 @@ dependencies {
 
     testImplementation(kotlin("test"))
     testImplementation("org.assertj:assertj-core:3.25.3")
-    testImplementation("org.slf4j:slf4j-simple:2.0.12")
 }
diff --git a/modern-treasury-java-core/build.gradle.kts b/modern-treasury-java-core/build.gradle.kts
index 7cb50a91..638609b7 100644
--- a/modern-treasury-java-core/build.gradle.kts
+++ b/modern-treasury-java-core/build.gradle.kts
@@ -19,8 +19,6 @@ dependencies {
     testImplementation(project(":modern-treasury-java-client-okhttp"))
     testImplementation("com.github.tomakehurst:wiremock-jre8:2.35.2")
     testImplementation("org.assertj:assertj-core:3.25.3")
-    testImplementation("org.assertj:assertj-guava:3.25.3")
-    testImplementation("org.slf4j:slf4j-simple:2.0.12")
     testImplementation("org.junit.jupiter:junit-jupiter-api:5.9.3")
     testImplementation("org.junit.jupiter:junit-jupiter-params:5.9.3")
 }
diff --git a/modern-treasury-java-core/src/test/kotlin/com/moderntreasury/api/services/ErrorHandlingTest.kt b/modern-treasury-java-core/src/test/kotlin/com/moderntreasury/api/services/ErrorHandlingTest.kt
index 613ee618..1fef6c6c 100644
--- a/modern-treasury-java-core/src/test/kotlin/com/moderntreasury/api/services/ErrorHandlingTest.kt
+++ b/modern-treasury-java-core/src/test/kotlin/com/moderntreasury/api/services/ErrorHandlingTest.kt
@@ -32,7 +32,6 @@ import java.time.OffsetDateTime
 import org.assertj.core.api.Assertions.assertThat
 import org.assertj.core.api.Assertions.assertThatThrownBy
 import org.assertj.core.api.InstanceOfAssertFactories
-import org.assertj.guava.api.Assertions.assertThat
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test