diff --git a/bundestag.io/api/package.json b/bundestag.io/api/package.json
index 527e02d19..5d9e22e30 100644
--- a/bundestag.io/api/package.json
+++ b/bundestag.io/api/package.json
@@ -21,7 +21,7 @@
   },
   "dependencies": {
     "@democracy-deutschland/bundestag.io-definitions": "1.0.2",
-    "@democracy-deutschland/bundestagio-common": "0.1.20",
+    "@democracy-deutschland/bundestagio-common": "0.1.21",
     "apollo-server-express": "^2.3.3",
     "axios": "^0.24.0",
     "body-parser": "^1.18.3",
diff --git a/bundestag.io/api/src/graphql/resolvers/Procedure.ts b/bundestag.io/api/src/graphql/resolvers/Procedure.ts
index 927cc27ac..010d443b8 100644
--- a/bundestag.io/api/src/graphql/resolvers/Procedure.ts
+++ b/bundestag.io/api/src/graphql/resolvers/Procedure.ts
@@ -328,6 +328,7 @@ const ProcedureResolvers: Resolvers = {
         }
         const plenaryMinute = await PlenaryMinuteModel.findOne({
           meeting: parseInt(session.session),
+          period: procedure.period,
         });
 
         console.log('plenaryMinute', plenaryMinute);
diff --git a/bundestag.io/api/yarn.lock b/bundestag.io/api/yarn.lock
index 582204a0d..c78dbfe62 100644
--- a/bundestag.io/api/yarn.lock
+++ b/bundestag.io/api/yarn.lock
@@ -652,10 +652,10 @@
   dependencies:
     typescript "^3.7.2"
 
-"@democracy-deutschland/bundestagio-common@0.1.20":
-  version "0.1.20"
-  resolved "https://registry.yarnpkg.com/@democracy-deutschland/bundestagio-common/-/bundestagio-common-0.1.20.tgz#32f921d6a93a5192c74138ed73777f71eaf2ec52"
-  integrity sha512-PZEXAXtp2sWyki1mm2RRoF4hpl1u6ob8IoAljTaY4bAnBS8mP565bj+ZbFjlJzEI94LZBAqU0t1F69TTOjkPLQ==
+"@democracy-deutschland/bundestagio-common@0.1.21":
+  version "0.1.21"
+  resolved "https://registry.yarnpkg.com/@democracy-deutschland/bundestagio-common/-/bundestagio-common-0.1.21.tgz#0f3abfff22bf428c04603c0a142cc90b9bc0a326"
+  integrity sha512-J7TEznNnVAhgHfMbEeCbh8DS20jScBZ2jxAqxxVC04bUnaNPy/WHevkiXihHnLnmFsvyrjo31O8eOmnhNiTVDg==
   dependencies:
     "@democracy-deutschland/bundestag.io-definitions" "^1.0.2"
     "@types/cron" "^1.7.2"
@@ -663,6 +663,7 @@
     jsonwebtoken "^8.5.1"
     mongoosastic "^4.6.0"
     mongoose "^6.0.12"
+    mongoose-diff-history mimani/mongoose-diff-history#master
     omit-deep "^0.3.0"
     ts-mongoose "^0.0.24"
 
diff --git a/common/bundestagio/package.json b/common/bundestagio/package.json
index 9d4a132a8..d30d9778e 100644
--- a/common/bundestagio/package.json
+++ b/common/bundestagio/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@democracy-deutschland/bundestagio-common",
-  "version": "0.1.21",
+  "version": "0.1.22-alpha.1",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "license": "MIT",
diff --git a/common/bundestagio/src/models/PlenaryMinute/schema.ts b/common/bundestagio/src/models/PlenaryMinute/schema.ts
index 15d6f780f..d7fb80c6d 100644
--- a/common/bundestagio/src/models/PlenaryMinute/schema.ts
+++ b/common/bundestagio/src/models/PlenaryMinute/schema.ts
@@ -11,7 +11,7 @@ export type PlenaryMinuteDoc = IPlenaryMinute & Document & SchemaTimestampsConfi
 
 const PlenaryMinuteSchema = new Schema<PlenaryMinuteDoc>(
   {
-    date: { type: Date, required: true, unique: true },
+    date: { type: Date, required: true, unique: false },
     meeting: { type: Number, required: true, unique: false },
     period: { type: Number, required: true, unique: false },
     xml: { type: String, required: true, unique: true },