diff --git a/CHANGES.rst b/CHANGES.rst
index 3f8aec75..346dba4f 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -6,7 +6,7 @@ Unreleased
 ----------
 * Add preStop hook to the CrateDB pods to ensure that the CrateDB process is
   stopped gracefully.
-
+* Change nginx ``proxy-body-size`` annotation value as it has stricter validations now
 
 2.43.1 (2025-01-08)
 -------------------
diff --git a/crate/operator/grand_central.py b/crate/operator/grand_central.py
index f01292b0..1e46d1e0 100644
--- a/crate/operator/grand_central.py
+++ b/crate/operator/grand_central.py
@@ -320,7 +320,7 @@ def get_grand_central_ingress(
             owner_references=owner_references,
             annotations={
                 "external-dns.alpha.kubernetes.io/hostname": hostname,
-                "nginx.ingress.kubernetes.io/proxy-body-size": "1Gi",
+                "nginx.ingress.kubernetes.io/proxy-body-size": "1G",
                 "nginx.ingress.kubernetes.io/configuration-snippet": (
                     """
                     gzip on;