diff --git a/braintrust-java-client-okhttp/build.gradle.kts b/braintrust-java-client-okhttp/build.gradle.kts
index 61e72e31..f708b5aa 100755
--- a/braintrust-java-client-okhttp/build.gradle.kts
+++ b/braintrust-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/braintrust-java-core/build.gradle.kts b/braintrust-java-core/build.gradle.kts
index 0e9c34a5..4301ae91 100755
--- a/braintrust-java-core/build.gradle.kts
+++ b/braintrust-java-core/build.gradle.kts
@@ -18,8 +18,6 @@ dependencies {
     testImplementation(project(":braintrust-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/braintrust-java-core/src/test/kotlin/com/braintrustdata/api/services/ErrorHandlingTest.kt b/braintrust-java-core/src/test/kotlin/com/braintrustdata/api/services/ErrorHandlingTest.kt
index 6bf60116..ebdc9eec 100755
--- a/braintrust-java-core/src/test/kotlin/com/braintrustdata/api/services/ErrorHandlingTest.kt
+++ b/braintrust-java-core/src/test/kotlin/com/braintrustdata/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