diff --git a/README.md b/README.md
index 6546680..ea81106 100644
--- a/README.md
+++ b/README.md
@@ -25,8 +25,8 @@ composer require mathiasgrimm/glimpse-php
 ```
 
 ```php
-use GlimpseImg\Client;
-use GlimpseImg\ImageFormat;
+use MathiasGrimm\GlimpsePhp\Client;
+use MathiasGrimm\GlimpsePhp\ImageFormat;
 use Illuminate\Http\Client\Factory;
 
 $glimpse = new Client(new Factory, 'your-api-token');
diff --git a/composer.json b/composer.json
index e8badbc..1818bcb 100644
--- a/composer.json
+++ b/composer.json
@@ -30,12 +30,12 @@
     },
     "autoload": {
         "psr-4": {
-            "GlimpseImg\\": "src/"
+            "MathiasGrimm\\GlimpsePhp\\": "src/"
         }
     },
     "autoload-dev": {
         "psr-4": {
-            "GlimpseImg\\Tests\\": "tests/"
+            "MathiasGrimm\\GlimpsePhp\\Tests\\": "tests/"
         }
     },
     "scripts": {
diff --git a/src/ApiException.php b/src/ApiException.php
index 9fadcf3..fd634f0 100644
--- a/src/ApiException.php
+++ b/src/ApiException.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 use RuntimeException;
 
diff --git a/src/AuthException.php b/src/AuthException.php
index cef3033..9d65c20 100644
--- a/src/AuthException.php
+++ b/src/AuthException.php
@@ -1,5 +1,5 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 class AuthException extends ApiException {}
diff --git a/src/Client.php b/src/Client.php
index 9ba8603..cbfa58f 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 use Closure;
 use Illuminate\Http\Client\Factory;
diff --git a/src/ForbiddenException.php b/src/ForbiddenException.php
index 1585667..0c27c89 100644
--- a/src/ForbiddenException.php
+++ b/src/ForbiddenException.php
@@ -1,5 +1,5 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 class ForbiddenException extends ApiException {}
diff --git a/src/FrameCounter.php b/src/FrameCounter.php
index fe1de2e..3e73ff1 100644
--- a/src/FrameCounter.php
+++ b/src/FrameCounter.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 use Imagick;
 use ImagickException;
diff --git a/src/ImageFormat.php b/src/ImageFormat.php
index 448212f..68d4eac 100644
--- a/src/ImageFormat.php
+++ b/src/ImageFormat.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 enum ImageFormat: string
 {
diff --git a/src/ImageInfo.php b/src/ImageInfo.php
index 1c880ea..0baa0a7 100644
--- a/src/ImageInfo.php
+++ b/src/ImageInfo.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 final readonly class ImageInfo
 {
diff --git a/src/ImageResolution.php b/src/ImageResolution.php
index e72fbf4..4a25192 100644
--- a/src/ImageResolution.php
+++ b/src/ImageResolution.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 final readonly class ImageResolution
 {
diff --git a/src/ImageResult.php b/src/ImageResult.php
index 71c5441..ecb9a4c 100644
--- a/src/ImageResult.php
+++ b/src/ImageResult.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 final readonly class ImageResult
 {
diff --git a/src/ProbeResult.php b/src/ProbeResult.php
index 48cde8b..8e037a9 100644
--- a/src/ProbeResult.php
+++ b/src/ProbeResult.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 final readonly class ProbeResult
 {
diff --git a/src/RateLimitException.php b/src/RateLimitException.php
index 41cb14c..387df8f 100644
--- a/src/RateLimitException.php
+++ b/src/RateLimitException.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 class RateLimitException extends ApiException
 {
diff --git a/src/SampleProbe.php b/src/SampleProbe.php
index a511d50..10af4cc 100644
--- a/src/SampleProbe.php
+++ b/src/SampleProbe.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 use Imagick;
 use ImagickException;
diff --git a/src/SizeEstimate.php b/src/SizeEstimate.php
index fdaa7c0..b0ebb44 100644
--- a/src/SizeEstimate.php
+++ b/src/SizeEstimate.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 final readonly class SizeEstimate
 {
diff --git a/src/UsagePeriod.php b/src/UsagePeriod.php
index c000661..5ae269b 100644
--- a/src/UsagePeriod.php
+++ b/src/UsagePeriod.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 use DateTimeImmutable;
 use Exception;
diff --git a/src/UsageSummary.php b/src/UsageSummary.php
index 00b1a19..6f5ae7f 100644
--- a/src/UsageSummary.php
+++ b/src/UsageSummary.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 final readonly class UsageSummary
 {
diff --git a/src/User.php b/src/User.php
index 05fafe4..8c7ac66 100644
--- a/src/User.php
+++ b/src/User.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 use DateTimeImmutable;
 use Exception;
diff --git a/src/ValidationException.php b/src/ValidationException.php
index c893ba9..cef7cc6 100644
--- a/src/ValidationException.php
+++ b/src/ValidationException.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg;
+namespace MathiasGrimm\GlimpsePhp;
 
 class ValidationException extends ApiException
 {
diff --git a/tests/ClientTest.php b/tests/ClientTest.php
index f02fac9..c9ed9dd 100644
--- a/tests/ClientTest.php
+++ b/tests/ClientTest.php
@@ -1,19 +1,19 @@
 <?php
 
-use GlimpseImg\ApiException;
-use GlimpseImg\AuthException;
-use GlimpseImg\Client;
-use GlimpseImg\ForbiddenException;
-use GlimpseImg\ImageFormat;
-use GlimpseImg\ImageInfo;
-use GlimpseImg\RateLimitException;
-use GlimpseImg\SizeEstimate;
-use GlimpseImg\Tests\Fixtures\Images;
-use GlimpseImg\UsageSummary;
-use GlimpseImg\User;
-use GlimpseImg\ValidationException;
 use Illuminate\Http\Client\Factory;
 use Illuminate\Http\Client\Request;
+use MathiasGrimm\GlimpsePhp\ApiException;
+use MathiasGrimm\GlimpsePhp\AuthException;
+use MathiasGrimm\GlimpsePhp\Client;
+use MathiasGrimm\GlimpsePhp\ForbiddenException;
+use MathiasGrimm\GlimpsePhp\ImageFormat;
+use MathiasGrimm\GlimpsePhp\ImageInfo;
+use MathiasGrimm\GlimpsePhp\RateLimitException;
+use MathiasGrimm\GlimpsePhp\SizeEstimate;
+use MathiasGrimm\GlimpsePhp\Tests\Fixtures\Images;
+use MathiasGrimm\GlimpsePhp\UsageSummary;
+use MathiasGrimm\GlimpsePhp\User;
+use MathiasGrimm\GlimpsePhp\ValidationException;
 
 function fakeHttp(array $responses = []): Factory
 {
diff --git a/tests/Fixtures/Images.php b/tests/Fixtures/Images.php
index b620400..e6776db 100644
--- a/tests/Fixtures/Images.php
+++ b/tests/Fixtures/Images.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace GlimpseImg\Tests\Fixtures;
+namespace MathiasGrimm\GlimpsePhp\Tests\Fixtures;
 
 final class Images
 {
diff --git a/tests/FrameCounterTest.php b/tests/FrameCounterTest.php
index 6d8abd3..1d811e8 100644
--- a/tests/FrameCounterTest.php
+++ b/tests/FrameCounterTest.php
@@ -1,7 +1,7 @@
 <?php
 
-use GlimpseImg\FrameCounter;
-use GlimpseImg\Tests\Fixtures\Images;
+use MathiasGrimm\GlimpsePhp\FrameCounter;
+use MathiasGrimm\GlimpsePhp\Tests\Fixtures\Images;
 
 test('counts the frames of an animated gif without any image extension', function () {
     expect((new FrameCounter)->count(Images::animatedGif()))->toBe(3);
diff --git a/tests/ImageFormatTest.php b/tests/ImageFormatTest.php
index 3a72f37..0753b10 100644
--- a/tests/ImageFormatTest.php
+++ b/tests/ImageFormatTest.php
@@ -1,7 +1,7 @@
 <?php
 
-use GlimpseImg\ImageFormat;
-use GlimpseImg\Tests\Fixtures\Images;
+use MathiasGrimm\GlimpsePhp\ImageFormat;
+use MathiasGrimm\GlimpsePhp\Tests\Fixtures\Images;
 
 test('tryFromBinary detects each supported format by its magic numbers', function () {
     expect(ImageFormat::tryFromBinary(Images::jpg()))->toBe(ImageFormat::Jpg)
diff --git a/tests/Pest.php b/tests/Pest.php
index d7a1b24..ccab4f9 100644
--- a/tests/Pest.php
+++ b/tests/Pest.php
@@ -1,6 +1,6 @@
 <?php
 
-use GlimpseImg\Tests\Fixtures\Images;
+use MathiasGrimm\GlimpsePhp\Tests\Fixtures\Images;
 
 /**
  * A canned successful analyze-endpoint response envelope.
diff --git a/tests/SampleProbeTest.php b/tests/SampleProbeTest.php
index e1dee76..6a221af 100644
--- a/tests/SampleProbeTest.php
+++ b/tests/SampleProbeTest.php
@@ -1,7 +1,7 @@
 <?php
 
-use GlimpseImg\SampleProbe;
-use GlimpseImg\Tests\Fixtures\Images;
+use MathiasGrimm\GlimpsePhp\SampleProbe;
+use MathiasGrimm\GlimpsePhp\Tests\Fixtures\Images;
 
 /**
  * Generate a jpeg whose content complexity is controlled: noisy pixels