diff --git a/.changeset/thick-stingrays-smile.md b/.changeset/thick-stingrays-smile.md
new file mode 100644
index 0000000000..2b56803ede
--- /dev/null
+++ b/.changeset/thick-stingrays-smile.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-explore': patch
+---
+
+Makes the `GroupsDiagram` not grown on screen on its own.
diff --git a/plugins/explore/src/components/GroupsExplorerContent/GroupsDiagram.tsx b/plugins/explore/src/components/GroupsExplorerContent/GroupsDiagram.tsx
index 674ef1e43f..fd1d5ba5fb 100644
--- a/plugins/explore/src/components/GroupsExplorerContent/GroupsDiagram.tsx
+++ b/plugins/explore/src/components/GroupsExplorerContent/GroupsDiagram.tsx
@@ -44,8 +44,10 @@ import useAsync from 'react-use/lib/useAsync';
 const useStyles = makeStyles((theme: BackstageTheme) => ({
   graph: {
     minHeight: '100%',
+    flex: 1,
   },
   graphWrapper: {
+    display: 'flex',
     height: '100%',
   },
   organizationNode: {