diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index 80724755..1b67b321 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -50,4 +50,8 @@ parameters:
         -
             message: "#.*return with type T is not subtype.*#"
             paths:
-                - src/SDK/Common/InstrumentationScope
\ No newline at end of file
+                - src/SDK/Common/InstrumentationScope
+        -
+            message: "#.*expects Google\\\\Protobuf\\\\RepeatedField.*#"
+            paths:
+                - src/Contrib/Otlp
\ No newline at end of file
diff --git a/psalm.xml.dist b/psalm.xml.dist
index 0ac60dbe..c14e435b 100644
--- a/psalm.xml.dist
+++ b/psalm.xml.dist
@@ -32,6 +32,12 @@
                 <referencedFunction name="OpenTelemetry\Instrumentation\hook"/>
             </errorLevel>
         </UndefinedFunction>
+        <UndefinedMethod>
+            <errorLevel type="suppress">
+                <referencedMethod name="Google\Protobuf\Internal\RepeatedField::offsetGet"/>
+                <referencedMethod name="Google\Protobuf\Internal\RepeatedField::offsetSet"/>
+            </errorLevel>
+        </UndefinedMethod>
         <ArgumentTypeCoercion>
             <errorLevel type="suppress">
                 <directory name="./examples"/>
diff --git a/tests/Unit/Contrib/Otlp/MetricConverterTest.php b/tests/Unit/Contrib/Otlp/MetricConverterTest.php
index 52c56dc0..18c17a37 100644
--- a/tests/Unit/Contrib/Otlp/MetricConverterTest.php
+++ b/tests/Unit/Contrib/Otlp/MetricConverterTest.php
@@ -178,13 +178,15 @@ final class MetricConverterTest extends TestCase
         );
     }
 
+    /**
+     * @psalm-suppress InvalidArgument
+     */
     public function test_multiple_resources_result_in_multiple_resource_metrics(): void
     {
         $resourceA = ResourceInfo::create(Attributes::create(['foo' => 'bar']));
         $resourceB = ResourceInfo::create(Attributes::create(['foo' => 'baz']));
         $this->assertCount(
             2,
-            /** @phpstan-ignore-next-line */
             (new MetricConverter())->convert([
                 new Metric(
                     $this->createMock(InstrumentationScopeInterface::class),
diff --git a/tests/Unit/Contrib/Otlp/SpanConverterTest.php b/tests/Unit/Contrib/Otlp/SpanConverterTest.php
index d12afa54..3ee0c248 100644
--- a/tests/Unit/Contrib/Otlp/SpanConverterTest.php
+++ b/tests/Unit/Contrib/Otlp/SpanConverterTest.php
@@ -32,6 +32,9 @@ use PHPUnit\Framework\TestCase;
 #[CoversClass(SpanConverter::class)]
 class SpanConverterTest extends TestCase
 {
+    /**
+     * @psalm-suppress InvalidArgument
+     */
     public function test_convert_span_to_payload(): void
     {
         $context = SpanContext::getInvalid();
@@ -62,7 +65,6 @@ class SpanConverterTest extends TestCase
         $this->assertSame($context->getTraceId(), bin2hex($link->getTraceId()));
         $this->assertSame($context->getSpanId(), bin2hex($link->getSpanId()));
         $this->assertSame(V1\SpanFlags::SPAN_FLAGS_CONTEXT_HAS_IS_REMOTE_MASK, $link->getFlags());
-        /** @phpstan-ignore-next-line */
         $this->assertCount(1, $link->getAttributes());
     }
 
@@ -310,6 +312,9 @@ class SpanConverterTest extends TestCase
         $this->assertCount(2, $result[0]->getResource()->getAttributes());
     }
 
+    /**
+     * @psalm-suppress InvalidArgument
+     */
     public function test_multiple_resources_result_in_multiple_resource_spans(): void
     {
         $resourceA = ResourceInfo::create(Attributes::create(['foo' => 'bar']));
@@ -319,13 +324,14 @@ class SpanConverterTest extends TestCase
             (new SpanData())->setResource($resourceA),
             (new SpanData())->setResource($resourceB),
         ])->getResourceSpans();
-        /** @phpstan-ignore-next-line */
         $this->assertCount(2, $result);
     }
 
+    /**
+     * @psalm-suppress InvalidArgument
+     */
     public function test_otlp_no_spans(): void
     {
-        /** @phpstan-ignore-next-line */
         $this->assertCount(0, (new SpanConverter())->convert([])->getResourceSpans());
     }