diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index b1b3c3bb..fbd4f14b 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -169,7 +169,7 @@ repos:
       entry: sh -c 'DIFF=$(gofmt -d -e client/go/trailbase/) && echo "${DIFF}" && test -z "${DIFF}"'
       language: system
       types: [go]
-      files: .*\.(go)$
+      # files: .*\.(go)$
       pass_filenames: false
 
     - id: go_test
@@ -182,7 +182,7 @@ repos:
     # Kotlin test
     - id: kotlin_test
       name: Kotlin test
-      entry: sh -c 'cd client/kotlin && ./gradlew test'
+      entry: sh -c 'cd client/kotlin && ./gradlew allTests'
       language: system
       types: [kotlin]
       pass_filenames: false
diff --git a/client/kotlin/lib/src/commonMain/kotlin/Library.kt b/client/kotlin/lib/src/commonMain/kotlin/Library.kt
index ba0df514..68782345 100644
--- a/client/kotlin/lib/src/commonMain/kotlin/Library.kt
+++ b/client/kotlin/lib/src/commonMain/kotlin/Library.kt
@@ -484,7 +484,7 @@ class Client(
   suspend fun refreshAuthToken() {
     val refreshToken = tokenState.shouldRefresh()
     if (refreshToken != null) {
-      tokenState = refreshTokensImpl(refreshToken)
+      tokenState = refreshTokensImpl(transport, refreshToken)
     }
   }
 
@@ -497,7 +497,7 @@ class Client(
   ): HttpResponse {
     val refreshToken = tokenState.shouldRefresh()
     if (refreshToken != null) {
-      tokenState = refreshTokensImpl(refreshToken)
+      tokenState = refreshTokensImpl(transport, refreshToken)
     }
 
     val response = transport.fetch(path, method, tokenState.headers, params, body)
@@ -507,12 +507,24 @@ class Client(
 
     return response
   }
+}
 
-  private suspend fun refreshTokensImpl(refreshToken: String): TokenState {
-    @Serializable data class Body(val refresh_token: String)
+private suspend fun refreshTokensImpl(transport: Transport, refreshToken: String): TokenState {
+  @Serializable data class Body(val refresh_token: String)
 
-    return TokenState.build(fetch("${AUTH_API}/refresh", Method.post, refreshToken).body())
+  val response =
+          transport.fetch(
+                  "${AUTH_API}/refresh",
+                  Method.post,
+                  /*headers=*/ null,
+                  /*params=*/ null,
+                  Body(refreshToken),
+          )
+  if (!response.status.isSuccess()) {
+    throw HttpException(response.status.value, response.body())
   }
+
+  return TokenState.build(response.body())
 }
 
 private fun initClient(): HttpClient {
diff --git a/client/kotlin/lib/src/jvmTest/kotlin/LibraryTest.kt b/client/kotlin/lib/src/jvmTest/kotlin/LibraryTest.kt
index fe35e943..06be6081 100644
--- a/client/kotlin/lib/src/jvmTest/kotlin/LibraryTest.kt
+++ b/client/kotlin/lib/src/jvmTest/kotlin/LibraryTest.kt
@@ -143,8 +143,12 @@ class ClientTest {
     assertNotNull(client.tokens())
     assertEquals("admin@localhost", client.user()?.email)
 
+    client.refreshAuthToken()
+    assertNotNull(client.tokens())
+
     client.logout()
     assertNull(client.tokens())
+    client.refreshAuthToken()
   }
 
   @Test