diff --git a/internal/common/client/sravni/client.go b/internal/common/client/sravni/client.go
index 1d2b97e..15314fa 100644
--- a/internal/common/client/sravni/client.go
+++ b/internal/common/client/sravni/client.go
@@ -202,11 +202,6 @@ func (c *client) ListEducationalProducts(
 	if !c.validLearningTypes.hasValue(params.LearningType) {
 		return result, errors.NewValidationError("learning_type", "unknown value")
 	}
-	for _, ct := range params.CoursesThematics {
-		if !c.validCourseThematics.hasValue(ct) {
-			return result, errors.NewValidationError("courses_thematics", "unknown value "+ct)
-		}
-	}
 
 	reqParams := listEducationProductsRequest{
 		LearningType:     valueAsArray(params.LearningType),