diff --git a/app/build.gradle b/app/build.gradle
index 73bb129e..640d5234 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -118,7 +118,7 @@ dependencies {
     testImplementation 'androidx.test:core:1.4.0'
     testImplementation 'androidx.arch.core:core-testing:2.1.0'
     testImplementation 'junit:junit:4.13.2'
-    testImplementation 'org.mockito:mockito-core:3.12.4'
+    testImplementation 'org.mockito:mockito-core:4.0.0'
     testImplementation 'org.robolectric:robolectric:4.6.1'
 
     implementation fileTree(dir: 'libs', include: ['*.jar'])
diff --git a/markdown/build.gradle b/markdown/build.gradle
index f8d4e9e0..2b1327f1 100644
--- a/markdown/build.gradle
+++ b/markdown/build.gradle
@@ -62,6 +62,6 @@ dependencies {
     testImplementation 'androidx.test:core:1.4.0'
     testImplementation 'androidx.arch.core:core-testing:2.1.0'
     testImplementation 'junit:junit:4.13.2'
-    testImplementation 'org.mockito:mockito-core:3.12.4'
+    testImplementation 'org.mockito:mockito-core:4.0.0'
     testImplementation 'org.robolectric:robolectric:4.6.1'
 }
\ No newline at end of file