diff --git a/core/ui/src/test/java/com/sadellie/unitto/core/ui/ExpressionTransformerTest.kt b/core/ui/src/test/java/com/sadellie/unitto/core/ui/ExpressionTransformerTest.kt
index 2e67a81e..430a76c3 100644
--- a/core/ui/src/test/java/com/sadellie/unitto/core/ui/ExpressionTransformerTest.kt
+++ b/core/ui/src/test/java/com/sadellie/unitto/core/ui/ExpressionTransformerTest.kt
@@ -20,8 +20,8 @@ package com.sadellie.unitto.core.ui
 
 import com.sadellie.unitto.core.ui.common.textfield.ExpressionTransformer
 import com.sadellie.unitto.core.ui.common.textfield.FormatterSymbols
-import org.junit.jupiter.api.Assertions.assertEquals
-import org.junit.jupiter.api.Test
+import org.junit.Assert.assertEquals
+import org.junit.Test
 
 class ExpressionTransformerTest {
 
diff --git a/data/common/src/test/java/com/sadellie/unitto/data/common/IsExpressionText.kt b/data/common/src/test/java/com/sadellie/unitto/data/common/IsExpressionText.kt
index 28a5ec48..2f581428 100644
--- a/data/common/src/test/java/com/sadellie/unitto/data/common/IsExpressionText.kt
+++ b/data/common/src/test/java/com/sadellie/unitto/data/common/IsExpressionText.kt
@@ -18,8 +18,8 @@
 
 package com.sadellie.unitto.data.common
 
-import org.junit.jupiter.api.Assertions.assertEquals
-import org.junit.jupiter.api.Test
+import org.junit.Assert.assertEquals
+import org.junit.Test
 
 
 class IsExpressionText {
diff --git a/data/epoch/src/test/java/com/sadellie/unitto/data/epoch/DateToEpochTest.kt b/data/epoch/src/test/java/com/sadellie/unitto/data/epoch/DateToEpochTest.kt
index 30b963a2..5a4ee4f7 100644
--- a/data/epoch/src/test/java/com/sadellie/unitto/data/epoch/DateToEpochTest.kt
+++ b/data/epoch/src/test/java/com/sadellie/unitto/data/epoch/DateToEpochTest.kt
@@ -18,8 +18,8 @@
 
 package com.sadellie.unitto.data.epoch
 
-import org.junit.jupiter.api.Assertions.assertEquals
-import org.junit.jupiter.api.Test
+import org.junit.Assert.assertEquals
+import org.junit.Test
 
 class DateToEpochTest {
 
diff --git a/data/units/src/test/java/com/sadellie/unitto/data/units/AllUnitsRepositoryTest.kt b/data/units/src/test/java/com/sadellie/unitto/data/units/AllUnitsRepositoryTest.kt
index a1bfc406..ab6b2a74 100644
--- a/data/units/src/test/java/com/sadellie/unitto/data/units/AllUnitsRepositoryTest.kt
+++ b/data/units/src/test/java/com/sadellie/unitto/data/units/AllUnitsRepositoryTest.kt
@@ -21,8 +21,8 @@ package com.sadellie.unitto.data.units
 import com.sadellie.unitto.data.model.ALL_UNIT_GROUPS
 import com.sadellie.unitto.data.model.AbstractUnit
 import com.sadellie.unitto.data.model.UnitGroup
-import org.junit.jupiter.api.Assertions.assertEquals
-import org.junit.jupiter.api.Test
+import org.junit.Assert.assertEquals
+import org.junit.Test
 import java.math.BigDecimal
 
 class AllUnitsRepositoryTest {
diff --git a/data/units/src/test/java/com/sadellie/unitto/data/units/AllUnitsTest.kt b/data/units/src/test/java/com/sadellie/unitto/data/units/AllUnitsTest.kt
index e5872ddb..f89197dd 100644
--- a/data/units/src/test/java/com/sadellie/unitto/data/units/AllUnitsTest.kt
+++ b/data/units/src/test/java/com/sadellie/unitto/data/units/AllUnitsTest.kt
@@ -20,9 +20,9 @@ package com.sadellie.unitto.data.units
 
 import com.sadellie.unitto.data.model.NumberBaseUnit
 import com.sadellie.unitto.data.model.UnitGroup
-import org.junit.jupiter.api.AfterEach
-import org.junit.jupiter.api.Assertions.assertEquals
-import org.junit.jupiter.api.Test
+import org.junit.After
+import org.junit.Assert.assertEquals
+import org.junit.Test
 import java.math.BigDecimal
 
 class AllUnitsTest {
@@ -524,7 +524,7 @@ class AllUnitsTest {
         history[unitFrom.group] = content.plus(this)
     }
 
-    @AfterEach
+    @After
     fun after() {
         val unitGroup = history.keys.first()
         // GROUP : testedCount / totalCount
diff --git a/data/units/src/test/java/com/sadellie/unitto/data/units/LevenshteinFilterAndSortTest.kt b/data/units/src/test/java/com/sadellie/unitto/data/units/LevenshteinFilterAndSortTest.kt
index 63cd6de9..95d56a27 100644
--- a/data/units/src/test/java/com/sadellie/unitto/data/units/LevenshteinFilterAndSortTest.kt
+++ b/data/units/src/test/java/com/sadellie/unitto/data/units/LevenshteinFilterAndSortTest.kt
@@ -22,8 +22,8 @@ import com.sadellie.unitto.data.model.AbstractUnit
 import com.sadellie.unitto.data.model.DefaultUnit
 import com.sadellie.unitto.data.model.UnitGroup
 import com.sadellie.unitto.data.model.sortByLev
-import org.junit.jupiter.api.Assertions.assertEquals
-import org.junit.jupiter.api.Test
+import org.junit.Assert.assertEquals
+import org.junit.Test
 import java.math.BigDecimal
 
 val baseList: List<AbstractUnit> = listOf(
diff --git a/data/units/src/test/java/com/sadellie/unitto/data/units/LevenshteinTest.kt b/data/units/src/test/java/com/sadellie/unitto/data/units/LevenshteinTest.kt
index 1cdb72bf..e9d4df7f 100644
--- a/data/units/src/test/java/com/sadellie/unitto/data/units/LevenshteinTest.kt
+++ b/data/units/src/test/java/com/sadellie/unitto/data/units/LevenshteinTest.kt
@@ -19,8 +19,8 @@
 package com.sadellie.unitto.data.units
 
 import com.sadellie.unitto.data.common.lev
-import org.junit.jupiter.api.Assertions.assertEquals
-import org.junit.jupiter.api.Test
+import org.junit.Assert.assertEquals
+import org.junit.Test
 
 class LevenshteinTest {
 
diff --git a/data/units/src/test/java/com/sadellie/unitto/data/units/MinimumRequiredScaleTest.kt b/data/units/src/test/java/com/sadellie/unitto/data/units/MinimumRequiredScaleTest.kt
index 28657026..1deaf6d3 100644
--- a/data/units/src/test/java/com/sadellie/unitto/data/units/MinimumRequiredScaleTest.kt
+++ b/data/units/src/test/java/com/sadellie/unitto/data/units/MinimumRequiredScaleTest.kt
@@ -19,8 +19,8 @@
 package com.sadellie.unitto.data.units
 
 import com.sadellie.unitto.data.common.setMinimumRequiredScale
-import org.junit.jupiter.api.Assertions.assertEquals
-import org.junit.jupiter.api.Test
+import org.junit.Assert.assertEquals
+import org.junit.Test
 import java.math.BigDecimal
 
 class MinimumRequiredScaleTest {
diff --git a/feature/datecalculator/src/test/java/com/sadellie/unitto/feature/datecalculator/difference/ZonedDateTimeDifferenceKtTest.kt b/feature/datecalculator/src/test/java/com/sadellie/unitto/feature/datecalculator/difference/ZonedDateTimeDifferenceKtTest.kt
index 3fef255e..b67461e9 100644
--- a/feature/datecalculator/src/test/java/com/sadellie/unitto/feature/datecalculator/difference/ZonedDateTimeDifferenceKtTest.kt
+++ b/feature/datecalculator/src/test/java/com/sadellie/unitto/feature/datecalculator/difference/ZonedDateTimeDifferenceKtTest.kt
@@ -18,8 +18,8 @@
 
 package com.sadellie.unitto.feature.datecalculator.difference
 
-import org.junit.jupiter.api.Assertions.assertEquals
-import org.junit.jupiter.api.Test
+import org.junit.Assert.assertEquals
+import org.junit.Test
 import java.time.ZonedDateTime
 import java.time.format.DateTimeFormatter
 
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index ce0ad27f..3c99b175 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -21,7 +21,7 @@ comSquareupMoshi = "1.15.0"
 comSquareupRetrofit2 = "2.9.0"
 comGithubSadellieThemmo = "1.0.0"
 orgBurnoutcrewComposereorderable = "0.9.6"
-junit = "5.9.3"
+junit = "4.13.2"
 androidxTest = "1.5.0"
 androidxTestExt = "1.1.5"
 androidDesugarJdkLibs = "2.0.3"
@@ -33,7 +33,7 @@ orgRobolectric = "4.10.3"
 androidx-core = { group = "androidx.core", name = "core-ktx", version.ref = "androidxCore" }
 androidx-test = { group = "androidx.test", name = "core", version.ref = "androidxTest" }
 androidx-test-ext = { group = "androidx.test.ext", name = "junit-ktx", version.ref = "androidxTestExt" }
-junit = { group = "org.junit.jupiter", name = "junit-jupiter-api", version.ref = "junit" }
+junit = { group = "junit", name = "junit", version.ref = "junit" }
 androidx-test-runner = { group = "androidx.test", name = "runner", version.ref = "androidxTestRunner" }
 androidx-test-rules = { group = "androidx.test", name = "rules", version.ref = "androidxTestRules" }
 org-robolectric = { group = "org.robolectric", name = "robolectric", version.ref = "orgRobolectric" }