diff --git a/lemmy-docker.nix b/lemmy-docker.nix
index e6c4f7e..ad44e2f 100644
--- a/lemmy-docker.nix
+++ b/lemmy-docker.nix
@@ -319,10 +319,12 @@ in {
     users.users = {
       lemmy-pictrs = {
         isSystemUser = true;
+        uid = 532;
         group = "lemmy-pictrs";
       };
       lemmy-postgres = {
         isSystemUser = true;
+        uid = 533;
         group = "lemmy-postgres";
       };
     };