diff --git a/pyensembl/ensembl_versions.py b/pyensembl/ensembl_versions.py
index dc60964..c6b2e51 100644
--- a/pyensembl/ensembl_versions.py
+++ b/pyensembl/ensembl_versions.py
@@ -11,7 +11,7 @@
 # limitations under the License.
 
 MIN_ENSEMBL_RELEASE = 40
-MAX_ENSEMBL_RELEASE = 111
+MAX_ENSEMBL_RELEASE = 112
 MAX_PLANTS_ENSEMBL_RELEASE = 58
 
 def check_release_number(release):
diff --git a/requirements.txt b/requirements.txt
index d177827..3ab139b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,3 +5,4 @@ tinytimer>=0.0.0,<1.0.0
 gtfparse>=2.5.0,<3.0.0
 serializable>=0.2.1,<1.0.0
 pylint>=2.17.2,<3.0.0
+numpy<2