diff --git a/lib/permissions/minimally-encoded-thread-permissions-test-data.js b/lib/permissions/minimally-encoded-thread-permissions-test-data.js
--- a/lib/permissions/minimally-encoded-thread-permissions-test-data.js
+++ b/lib/permissions/minimally-encoded-thread-permissions-test-data.js
@@ -332,14 +332,12 @@
       minimallyEncoded: true,
       id: '256',
       role: null,
-      permissions: '87fff',
       isSender: false,
     },
     {
       minimallyEncoded: true,
       id: '83853',
       role: '85172',
-      permissions: '3027f',
       isSender: true,
     },
   ],
diff --git a/lib/permissions/special-roles.test.js b/lib/permissions/special-roles.test.js
--- a/lib/permissions/special-roles.test.js
+++ b/lib/permissions/special-roles.test.js
@@ -62,14 +62,12 @@
       {
         id: '256',
         role: '256|83796',
-        permissions: '3f73ff',
         isSender: false,
         minimallyEncoded: true,
       },
       {
         id: '83809',
         role: '256|83795',
-        permissions: '3',
         isSender: false,
         minimallyEncoded: true,
       },
@@ -159,14 +157,12 @@
       {
         id: '256',
         role: null,
-        permissions: '2c7fff',
         isSender: false,
         minimallyEncoded: true,
       },
       {
         id: '83809',
         role: '256|83815',
-        permissions: '3026f',
         isSender: true,
         minimallyEncoded: true,
       },
diff --git a/lib/reducers/calendar-filters-reducer.test.js b/lib/reducers/calendar-filters-reducer.test.js
--- a/lib/reducers/calendar-filters-reducer.test.js
+++ b/lib/reducers/calendar-filters-reducer.test.js
@@ -31,14 +31,12 @@
         {
           id: '256',
           role: '256|83796',
-          permissions: '3f73ff',
           isSender: true,
           minimallyEncoded: true,
         },
         {
           id: '83810',
           role: '256|83795',
-          permissions: '3',
           isSender: false,
           minimallyEncoded: true,
         },
@@ -86,14 +84,12 @@
         {
           id: '256',
           role: null,
-          permissions: '2c7fff',
           isSender: false,
           minimallyEncoded: true,
         },
         {
           id: '83810',
           role: '256|83816',
-          permissions: '3026f',
           isSender: true,
           minimallyEncoded: true,
         },
diff --git a/lib/reducers/integrity-reducer.test.js b/lib/reducers/integrity-reducer.test.js
--- a/lib/reducers/integrity-reducer.test.js
+++ b/lib/reducers/integrity-reducer.test.js
@@ -51,14 +51,12 @@
       {
         id: '256',
         role: '256|83796',
-        permissions: '3f73ff',
         isSender: true,
         minimallyEncoded: true,
       },
       {
         id: '83810',
         role: '256|83795',
-        permissions: '3',
         isSender: false,
         minimallyEncoded: true,
       },
diff --git a/lib/shared/thread-utils.test.js b/lib/shared/thread-utils.test.js
--- a/lib/shared/thread-utils.test.js
+++ b/lib/shared/thread-utils.test.js
@@ -90,14 +90,12 @@
     {
       id: '256',
       role: '83796',
-      permissions: '3f73ff',
       isSender: false,
       minimallyEncoded: true,
     },
     {
       id: '83809',
       role: '83795',
-      permissions: '3',
       isSender: false,
       minimallyEncoded: true,
     },
diff --git a/lib/types/minimally-encoded-thread-permissions-types.js b/lib/types/minimally-encoded-thread-permissions-types.js
--- a/lib/types/minimally-encoded-thread-permissions-types.js
+++ b/lib/types/minimally-encoded-thread-permissions-types.js
@@ -164,7 +164,7 @@
 export type ThinRawThreadInfo = $ReadOnly<{
   ...LegacyThinRawThreadInfo,
   +minimallyEncoded: true,
-  +members: $ReadOnlyArray<MemberInfoWithPermissions>,
+  +members: $ReadOnlyArray<MemberInfoSansPermissions>,
   +roles: { +[id: string]: RoleInfo },
   +currentUser: ThreadCurrentUserInfo,
 }>;