diff --git a/phpunit-api.xml b/phpunit-api.xml
index a2f4def8..dc682322 100644
--- a/phpunit-api.xml
+++ b/phpunit-api.xml
@@ -5,6 +5,8 @@
     bootstrap="./config/test/bootstrap_api_tests.php"
     colors="true"
     cacheDirectory="build/.phpunit/api-tests.cache"
+    displayDetailsOnTestsThatTriggerWarnings="true"
+    displayDetailsOnTestsThatTriggerDeprecations="true"
 >
     <testsuites>
         <testsuite name="Shlink API tests">
diff --git a/phpunit-cli.xml b/phpunit-cli.xml
index 1eaa0f28..186a9511 100644
--- a/phpunit-cli.xml
+++ b/phpunit-cli.xml
@@ -5,6 +5,8 @@
     bootstrap="./config/test/bootstrap_cli_tests.php"
     colors="true"
     cacheDirectory="build/.phpunit/cli-tests.cache"
+    displayDetailsOnTestsThatTriggerWarnings="true"
+    displayDetailsOnTestsThatTriggerDeprecations="true"
 >
     <testsuites>
         <testsuite name="Shlink CLI tests">
diff --git a/phpunit-db.xml b/phpunit-db.xml
index 17e748b8..f63a2d7e 100644
--- a/phpunit-db.xml
+++ b/phpunit-db.xml
@@ -5,6 +5,8 @@
     bootstrap="./config/test/bootstrap_db_tests.php"
     colors="true"
     cacheDirectory="build/.phpunit/db-tests.cache"
+    displayDetailsOnTestsThatTriggerWarnings="true"
+    displayDetailsOnTestsThatTriggerDeprecations="true"
 >
     <testsuites>
         <testsuite name="Shlink database tests">
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 30f2286d..4c7b9f10 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -6,6 +6,7 @@
     colors="true"
     cacheDirectory="build/.phpunit/unit-tests.cache"
     displayDetailsOnTestsThatTriggerWarnings="true"
+    displayDetailsOnTestsThatTriggerDeprecations="true"
 >
     <testsuites>
         <testsuite name="Core">