diff --git a/src/chrome/mainsidebar/MainSidebar2.tsx b/src/chrome/mainsidebar/MainSidebar2.tsx
index 959a1184e..e24a479c0 100644
--- a/src/chrome/mainsidebar/MainSidebar2.tsx
+++ b/src/chrome/mainsidebar/MainSidebar2.tsx
@@ -91,7 +91,7 @@ const SidebarSectionBody = styled('div')<{
   overflow: 'hidden',
   maxHeight: collapsed ? 0 : 2000, // might need increase if too many plugins...
   transition: collapsed
-    ? 'max-height 0.5s ease-out'
+    ? 'max-height 0.3s ease-out'
     : 'max-height 0.5s ease-in',
 }));
 
diff --git a/src/reducers/healthchecks.tsx b/src/reducers/healthchecks.tsx
index 22aee7c2b..bf62ad553 100644
--- a/src/reducers/healthchecks.tsx
+++ b/src/reducers/healthchecks.tsx
@@ -8,7 +8,7 @@
  */
 
 import {Actions} from './';
-import {produce} from 'flipper';
+import {produce} from 'immer';
 import {Healthchecks} from 'flipper-doctor';
 
 export type State = {