diff --git a/docs/mongo-db-schema.odg b/docs/mongo-db-schema.odg
index 0287454..c7ab0b0 100644
Binary files a/docs/mongo-db-schema.odg and b/docs/mongo-db-schema.odg differ
diff --git a/server/models/logs/budget.js b/server/models/logs/budget.js
index 479ddab..ad8c8f2 100644
--- a/server/models/logs/budget.js
+++ b/server/models/logs/budget.js
@@ -32,6 +32,7 @@ const LogBudgetSchema = new Schema({
   },
 }, {
   collection: 'logBudget',
+  versionKey: false
 });
 // optional more indices
 LogBudgetSchema.index({war: 1});
diff --git a/server/models/logs/flag.js b/server/models/logs/flag.js
index 820bbfa..aa1b5b7 100644
--- a/server/models/logs/flag.js
+++ b/server/models/logs/flag.js
@@ -28,6 +28,7 @@ const LogFlagSchema = new Schema({
   },
 }, {
   collection: 'logFlag',
+  versionKey: false
 });
 // optional more indices
 LogFlagSchema.index({war: 1, player: 1});
diff --git a/server/models/logs/kill.js b/server/models/logs/kill.js
index e695b24..70e10a0 100644
--- a/server/models/logs/kill.js
+++ b/server/models/logs/kill.js
@@ -40,6 +40,7 @@ const LogKillSchema = new Schema({
   },
 }, {
   collection: 'logKill',
+  versionKey: false
 });
 // optional more indices
 LogKillSchema.index({war: 1, shooter: 1, target: 1});
diff --git a/server/models/logs/player-count.js b/server/models/logs/player-count.js
index ee17850..9402c86 100644
--- a/server/models/logs/player-count.js
+++ b/server/models/logs/player-count.js
@@ -27,6 +27,7 @@ const LogPlayerCountSchema = new Schema({
   },
 }, {
   collection: 'logPlayerCount',
+  versionKey: false
 });
 // optional more indices
 LogPlayerCountSchema.index({war: 1});
diff --git a/server/models/logs/points.js b/server/models/logs/points.js
index 3ac06b8..83afe52 100644
--- a/server/models/logs/points.js
+++ b/server/models/logs/points.js
@@ -32,6 +32,7 @@ const LogKillSchema = new Schema({
   },
 }, {
   collection: 'logPoints',
+  versionKey: false
 });
 // optional more indices
 LogKillSchema.index({war: 1, shooter: 1, target: 1});
diff --git a/server/models/logs/respawn.js b/server/models/logs/respawn.js
index 8de2b57..386755a 100644
--- a/server/models/logs/respawn.js
+++ b/server/models/logs/respawn.js
@@ -19,6 +19,7 @@ const LogRespawnSchema = new Schema({
   },
 }, {
   collection: 'logRespawn',
+  versionKey: false
 });
 // optional more indices
 LogRespawnSchema.index({war: 1, player: 1});
diff --git a/server/models/logs/revive.js b/server/models/logs/revive.js
index a409ac6..93f993e 100644
--- a/server/models/logs/revive.js
+++ b/server/models/logs/revive.js
@@ -32,6 +32,7 @@ const LogReviveSchema = new Schema({
   },
 }, {
   collection: 'logRevive',
+  versionKey: false
 });
 // optional more indices
 LogReviveSchema.index({war: 1, medic: 1});
diff --git a/server/models/logs/transport.js b/server/models/logs/transport.js
index dff8619..ccf4d89 100644
--- a/server/models/logs/transport.js
+++ b/server/models/logs/transport.js
@@ -34,6 +34,7 @@ const LogTransportSchema = new Schema({
   },
 }, {
   collection: 'logTransport',
+  versionKey: false
 });
 // optional more indices
 LogTransportSchema.index({war: 1, driver: 1});
diff --git a/server/models/logs/vehicle.js b/server/models/logs/vehicle.js
index e2e5307..c898cfa 100644
--- a/server/models/logs/vehicle.js
+++ b/server/models/logs/vehicle.js
@@ -41,6 +41,7 @@ const LogVehicleKillSchema = new Schema({
   },
 }, {
   collection: 'logVehicle',
+  versionKey: false
 });
 // optional more indices
 LogVehicleKillSchema.index({war: 1, shooter: 1, target: 1});