diff --git a/.d-compiler b/.d-compiler
index e1e25f1..a6a6aa9 100644
--- a/.d-compiler
+++ b/.d-compiler
@@ -1 +1 @@
-dmd-2.100.2
+dmd-2.104.0
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d8ecbec..9d2df05 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-20.04 ]
-        dc: [ dmd-2.100.2, ldc-1.30.0 ]
+        dc: [ dmd-2.104.0, ldc-1.32.2 ]
 
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/dub.selections.json b/dub.selections.json
index 3020d47..b3775c9 100644
--- a/dub.selections.json
+++ b/dub.selections.json
@@ -4,16 +4,17 @@
 		"ae": "0.0.3228",
 		"botan": "1.12.19",
 		"botan-math": "1.0.3",
-		"diet-ng": "1.7.5",
-		"eventcore": "0.9.14",
+		"diet-ng": "1.8.1",
+		"eventcore": "0.9.25",
 		"libasync": "0.8.6",
-		"memutils": "1.0.4",
+		"memutils": "1.0.9",
 		"mir-linux-kernel": "1.0.1",
-		"openssl": "1.1.6+1.0.1g",
+		"openssl": "3.3.0",
+		"openssl-static": "1.0.2+3.0.8",
 		"stdx-allocator": "2.77.5",
 		"taggedalgebraic": "0.11.22",
-		"unit-threaded": "1.0.15",
-		"vibe-core": "1.18.0",
-		"vibe-d": "0.9.3"
+		"unit-threaded": "1.1.0",
+		"vibe-core": "2.2.0",
+		"vibe-d": "0.9.6"
 	}
 }
diff --git a/source/dlangbot/buildkite.d b/source/dlangbot/buildkite.d
index 67fceec..091c8d2 100644
--- a/source/dlangbot/buildkite.d
+++ b/source/dlangbot/buildkite.d
@@ -106,12 +106,13 @@ Info queryState(string pipelineSearch=null)
 {
     import std.algorithm : map, remove, each;
     import std.array : array;
+    import std.exception : assertNotThrown;
     import vibe.core.core : runTask;
 
     typeof(return) ret;
     [
-        { ret.organization = organization(pipelineSearch); },
-        { ret.hcServers = hc.servers.remove!(s => !s.name.startsWith("ci-agent-")); },
+        { ret.organization = organization(pipelineSearch).assertNotThrown; },
+        { ret.hcServers = hc.servers.remove!(s => !s.name.startsWith("ci-agent-")).assertNotThrown; },
     ].map!runTask.array.each!(task => task.join);
     return ret;
 }
diff --git a/source/dlangbot/twitter.d b/source/dlangbot/twitter.d
index eb01adb..d9a3930 100644
--- a/source/dlangbot/twitter.d
+++ b/source/dlangbot/twitter.d
@@ -99,7 +99,7 @@ struct OAuth
         import std.range : chain;
         import std.string : representation;
 
-        auto query = parameters.map!(a => a.byKeyValue.array)
+        auto query = parameters.map!(a => a.byKeyValue.array.dup)
                         .joiner
                         .array
                         .sort
diff --git a/source/dlangbot/utils.d b/source/dlangbot/utils.d
index c335051..425bb4d 100644
--- a/source/dlangbot/utils.d
+++ b/source/dlangbot/utils.d
@@ -4,6 +4,7 @@ import core.time : seconds;
 
 import dlangbot.app : runAsync;
 
+import vibe.core.log : logError;
 import vibe.http.client : HTTPClientRequest, HTTPClientResponse, HTTPClientSettings;
 import vibe.http.common : HTTPStatus;
 
@@ -99,7 +100,17 @@ auto runTaskHelper(Fun, Args...)(Fun fun, auto ref Args args)
     import vibe.core.core : runTask;
 
     if (runAsync)
-        runTask(fun.toDelegate, args);
+        runTask({
+            try
+                fun(args);
+            catch (Exception e)
+            {
+                try
+                    logError(e.toString());
+                catch (Exception) {}
+                assert(false, "Fatal error");
+            }
+        });
     else
         return fun(args);
 }