diff --git a/app/build.gradle b/app/build.gradle
index ac1ec57..87891ab 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -35,4 +35,8 @@
     testImplementation libs.junit
     androidTestImplementation libs.ext.junit
     androidTestImplementation libs.espresso.core
+    implementation libs.retrofit21
+    implementation libs.retrofit22
+    implementation libs.retrofit23
+    implementation libs.retrofit24
 }
\ No newline at end of file
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index e08b34e..145dc5f 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -5,6 +5,10 @@
 espressoCore = "3.5.1"
 appcompat = "1.7.0"
 material = "1.12.0"
+retrofit21 = "2.9.0"
+retrofit22 = "2.9.0"
+retrofit23 = "2.5.0"
+retrofit24 = "2.1.0"
 
 [libraries]
 junit = { group = "junit", name = "junit", version.ref = "junit" }
@@ -12,6 +16,10 @@
 espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }
 appcompat = { group = "androidx.appcompat", name = "appcompat", version.ref = "appcompat" }
 material = { group = "com.google.android.material", name = "material", version.ref = "material" }
+retrofit21 = { group = "com.squareup.retrofit2", name = "retrofit", version.ref = "retrofit21" }
+retrofit22 = { group = "com.squareup.retrofit2", name = "converter-moshi", version.ref = "retrofit22" }
+retrofit23 = { group = "com.squareup.retrofit2", name = "converter-jackson", version.ref = "retrofit23" }
+retrofit24 = { group = "com.squareup.retrofit2", name = "converter-scalars", version.ref = "retrofit24" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }