diff --git a/go/tumblrandom/tumblrandom.go b/go/tumblrandom/tumblrandom.go
index f8df6f984c..d022ee4da4 100644
--- a/go/tumblrandom/tumblrandom.go
+++ b/go/tumblrandom/tumblrandom.go
@@ -205,7 +205,7 @@ type likesResponse struct {
 }
 
 var (
-	refreshBuf   map[string][]Post
+	refreshBuf   = map[string][]Post{}
 	refreshBufMu sync.Mutex
 )
 
diff --git a/nix/docker/heptapod/image.json b/nix/docker/heptapod/image.json
index 8442c4e494..99431f9857 100644
--- a/nix/docker/heptapod/image.json
+++ b/nix/docker/heptapod/image.json
@@ -1,7 +1,7 @@
 {
-  "imageName": "octobus/heptapod",
-  "imageDigest": "sha256:2060ec4a177bd222cca1523f65897071e11cdb39134c63a01fc6cba3eb8ea119",
-  "sha256": "sha256:0000000000000000000000000000000000000000000000000000",
-  "finalImageName": "octobus/heptapod",
-  "finalImageTag": "1.5.5"
+  "imageName": "heptapod/heptapod",
+  "imageDigest": "sha256:0da8a44eee3edbc3f19466205435770237f21fcbf96298c8e29ee568c5ff02ae",
+  "sha256": "6sI0BGvGS5obgJMcAR0vS63uTUm1qz9a6AYQjyFqsXw=",
+  "finalImageName": "heptapod/heptapod",
+  "finalImageTag": "17.2.0"
 }
diff --git a/nix/pkgs/plex-pass.nix b/nix/pkgs/plex-pass.nix
index 87cb3fe5c0..1ac30ac86e 100644
--- a/nix/pkgs/plex-pass.nix
+++ b/nix/pkgs/plex-pass.nix
@@ -4,10 +4,10 @@
 
 { pkgs, ... }:
 let
-  version = "1.40.5.8796-3e374e32c";
+  version = "1.40.5.8921-836b34c27";
   src = pkgs.fetchurl {
-    url = "https://downloads.plex.tv/plex-media-server-new/1.40.5.8796-3e374e32c/debian/plexmediaserver_1.40.5.8796-3e374e32c_amd64.deb";
-    hash = "sha256:0vdf3cilghmi8gd18dw6d4qg6j71ikfp9lqnd2qy6jjw8a3m3jk8";
+    url = "https://downloads.plex.tv/plex-media-server-new/1.40.5.8921-836b34c27/debian/plexmediaserver_1.40.5.8921-836b34c27_amd64.deb";
+    hash = "sha256:0fia2d6gxlxv1my5031wnp3ihc3knfra1yrwadz44khh03zkvxq7";
   };
 in
 (pkgs.plex.override {