diff --git a/src/bundles/bundles.module.ts b/src/bundles/bundles.module.ts
index c28eee8..d8af307 100644
--- a/src/bundles/bundles.module.ts
+++ b/src/bundles/bundles.module.ts
@@ -4,9 +4,10 @@ import { DampLabServicesModule } from '../services/damplab-services.module';
 import { Bundle, BundleSchema } from './bundles.model';
 import { BundlesResolver } from './bundles.resolver';
 import { BundlesService } from './bundles.service';
+import { BundleUpdatePipe } from './update.pipe';
 
 @Module({
   imports: [MongooseModule.forFeature([{ name: Bundle.name, schema: BundleSchema }]), DampLabServicesModule],
-  providers: [BundlesService, BundlesResolver]
+  providers: [BundlesService, BundlesResolver, BundleUpdatePipe]
 })
 export class BundlesModule {}
diff --git a/src/bundles/bundles.pipe.ts b/src/bundles/bundles.pipe.ts
new file mode 100644
index 0000000..466fbc4
--- /dev/null
+++ b/src/bundles/bundles.pipe.ts
@@ -0,0 +1,17 @@
+import { Injectable, NotFoundException, PipeTransform } from '@nestjs/common';
+import { Bundle } from './bundles.model';
+import { BundlesService } from './bundles.service';
+
+@Injectable()
+export class BundlesPipe implements PipeTransform<string, Promise<Bundle>> {
+  constructor(private readonly bundleService: BundlesService) {}
+
+  async transform(value: string): Promise<Bundle> {
+    const bundle = await this.bundleService.find(value);
+
+    if (!bundle) {
+      throw new NotFoundException(`Bundle with id ${value} not found`);
+    }
+    return bundle;
+  }
+}
diff --git a/src/bundles/bundles.resolver.ts b/src/bundles/bundles.resolver.ts
index bbee738..ea21235 100644
--- a/src/bundles/bundles.resolver.ts
+++ b/src/bundles/bundles.resolver.ts
@@ -1,8 +1,11 @@
-import { Parent, Query, ResolveField, Resolver } from '@nestjs/graphql';
+import { Parent, Query, ResolveField, Resolver, Args, Mutation, ID } from '@nestjs/graphql';
 import { DampLabServices } from '../services/damplab-services.services';
 import { DampLabService } from '../services/models/damplab-service.model';
 import { Bundle } from './bundles.model';
 import { BundlesService } from './bundles.service';
+import { BundlesPipe } from './bundles.pipe';
+import { BundleChange } from './dtos/update.dto';
+import { BundleUpdatePipe } from './update.pipe';
 
 @Resolver(() => Bundle)
 export class BundlesResolver {
@@ -13,6 +16,11 @@ export class BundlesResolver {
     return this.bundlesService.findAll();
   }
 
+  @Mutation(() => Bundle)
+  async updateBundle(@Args('bundle', { type: () => ID }, BundlesPipe) bundle: Bundle, @Args('changes', { type: () => BundleChange }, BundleUpdatePipe) changes: BundleChange): Promise<Bundle> {
+    return this.bundlesService.update(bundle, changes);
+  }
+
   @ResolveField()
   async services(@Parent() bundle: Bundle): Promise<DampLabService[]> {
     return this.dampLabServices.findByIds(bundle.services);
diff --git a/src/bundles/bundles.service.ts b/src/bundles/bundles.service.ts
index ff24a39..2d06d16 100644
--- a/src/bundles/bundles.service.ts
+++ b/src/bundles/bundles.service.ts
@@ -2,12 +2,22 @@ import { Injectable } from '@nestjs/common';
 import { InjectModel } from '@nestjs/mongoose';
 import { Bundle } from './bundles.model';
 import { Model } from 'mongoose';
+import { BundleChange } from './dtos/update.dto';
 
 @Injectable()
 export class BundlesService {
   constructor(@InjectModel(Bundle.name) private readonly bundleModel: Model<Bundle>) {}
 
+  async find(id: string): Promise<Bundle | null> {
+    return this.bundleModel.findById(id);
+  }
+
   async findAll(): Promise<Bundle[]> {
     return this.bundleModel.find().exec();
   }
+
+  async update(bundle: Bundle, changes: BundleChange): Promise<Bundle> {
+    await this.bundleModel.updateOne({ _id: bundle.id }, changes);
+    return (await this.find(bundle.id))!;
+  }
 }
diff --git a/src/bundles/dtos/update.dto.ts b/src/bundles/dtos/update.dto.ts
new file mode 100644
index 0000000..712adc2
--- /dev/null
+++ b/src/bundles/dtos/update.dto.ts
@@ -0,0 +1,8 @@
+import { Bundle } from '../bundles.model';
+import { ID, InputType, OmitType, PartialType, Field } from '@nestjs/graphql';
+
+@InputType()
+export class BundleChange extends PartialType(OmitType(Bundle, ['id', 'services'] as const), InputType) {
+  @Field(() => [ID], { nullable: true })
+  services: string[];
+}
diff --git a/src/bundles/update.pipe.ts b/src/bundles/update.pipe.ts
new file mode 100644
index 0000000..b6e2453
--- /dev/null
+++ b/src/bundles/update.pipe.ts
@@ -0,0 +1,17 @@
+import { Injectable, PipeTransform } from '@nestjs/common';
+import { DampLabServicePipe } from '../services/damplab-services.pipe';
+import { BundleChange } from './dtos/update.dto';
+
+@Injectable()
+export class BundleUpdatePipe implements PipeTransform<BundleChange, Promise<BundleChange>> {
+  constructor(private readonly damplabServicePipe: DampLabServicePipe) {}
+
+  async transform(value: BundleChange): Promise<BundleChange> {
+    // If services is includes, make sure they are all valid
+    if (value.services) {
+      await Promise.all(value.services.map((service) => this.damplabServicePipe.transform(service)));
+    }
+
+    return value;
+  }
+}
diff --git a/src/categories/categories.module.ts b/src/categories/categories.module.ts
index c3f7b37..46a604e 100644
--- a/src/categories/categories.module.ts
+++ b/src/categories/categories.module.ts
@@ -4,9 +4,11 @@ import { Category, CategorySchema } from './category.model';
 import { CategoryService } from './categories.service';
 import { CategoryResolver } from './categories.resolver';
 import { DampLabServicesModule } from '../services/damplab-services.module';
+import { CategoryPipe } from './categories.pipe';
+import { CategoryUpdatePipe } from './update.pipe';
 
 @Module({
   imports: [MongooseModule.forFeature([{ name: Category.name, schema: CategorySchema }]), DampLabServicesModule],
-  providers: [CategoryService, CategoryResolver]
+  providers: [CategoryService, CategoryResolver, CategoryPipe, CategoryUpdatePipe]
 })
 export class CategoriesModule {}
diff --git a/src/categories/categories.pipe.ts b/src/categories/categories.pipe.ts
new file mode 100644
index 0000000..f495ea1
--- /dev/null
+++ b/src/categories/categories.pipe.ts
@@ -0,0 +1,19 @@
+import { NotFoundException, Injectable, PipeTransform } from '@nestjs/common';
+import { Category } from './category.model';
+import { CategoryService } from './categories.service';
+
+@Injectable()
+export class CategoryPipe implements PipeTransform<string, Promise<Category>> {
+  constructor(private readonly categoryService: CategoryService) {}
+
+  async transform(value: string): Promise<Category> {
+    try {
+      const category = await this.categoryService.find(value);
+      if (category) {
+        return category;
+      }
+    } catch (e) {}
+
+    throw new NotFoundException(`Category with id ${value} not found`);
+  }
+}
diff --git a/src/categories/categories.resolver.ts b/src/categories/categories.resolver.ts
index f0e46e1..6d2a35a 100644
--- a/src/categories/categories.resolver.ts
+++ b/src/categories/categories.resolver.ts
@@ -1,8 +1,11 @@
-import { Query, ResolveField, Resolver } from '@nestjs/graphql';
+import { Args, Mutation, Query, ResolveField, Resolver, ID } from '@nestjs/graphql';
 import { Category } from './category.model';
 import { CategoryService } from './categories.service';
 import { DampLabServices } from '../services/damplab-services.services';
 import { DampLabService } from '../services/models/damplab-service.model';
+import { CategoryPipe } from './categories.pipe';
+import { CategoryChange } from './dtos/update.dto';
+import { CategoryUpdatePipe } from './update.pipe';
 
 @Resolver(() => Category)
 export class CategoryResolver {
@@ -13,6 +16,14 @@ export class CategoryResolver {
     return this.categoryService.findAll();
   }
 
+  @Mutation(() => Category)
+  async updateCategory(
+    @Args('category', { type: () => ID }, CategoryPipe) category: Category,
+    @Args('changes', { type: () => CategoryChange }, CategoryUpdatePipe) changes: CategoryChange
+  ): Promise<Category> {
+    return this.categoryService.update(category, changes);
+  }
+
   /**
    * Resolver for the services field of the Category type
    */
diff --git a/src/categories/categories.service.ts b/src/categories/categories.service.ts
index e0d14c1..6f65c24 100644
--- a/src/categories/categories.service.ts
+++ b/src/categories/categories.service.ts
@@ -2,6 +2,7 @@ import { Injectable } from '@nestjs/common';
 import { InjectModel } from '@nestjs/mongoose';
 import { Category, CategoryDocument } from './category.model';
 import { Model } from 'mongoose';
+import { CategoryChange } from './dtos/update.dto';
 
 @Injectable()
 export class CategoryService {
@@ -10,4 +11,13 @@ export class CategoryService {
   async findAll(): Promise<Category[]> {
     return this.categoryModel.find().exec();
   }
+
+  async find(id: string): Promise<Category | null> {
+    return this.categoryModel.findById(id);
+  }
+
+  async update(category: Category, change: CategoryChange): Promise<Category> {
+    await this.categoryModel.updateOne({ _id: category._id }, change);
+    return (await this.find(category._id))!;
+  }
 }
diff --git a/src/categories/dtos/update.dto.ts b/src/categories/dtos/update.dto.ts
new file mode 100644
index 0000000..d8742d3
--- /dev/null
+++ b/src/categories/dtos/update.dto.ts
@@ -0,0 +1,8 @@
+import { Category } from '../category.model';
+import { ID, OmitType, PartialType, Field, InputType } from '@nestjs/graphql';
+
+@InputType()
+export class CategoryChange extends PartialType(OmitType(Category, ['_id', 'services'] as const), InputType) {
+  @Field(() => [ID], { nullable: true })
+  services: string[];
+}
diff --git a/src/categories/update.pipe.ts b/src/categories/update.pipe.ts
new file mode 100644
index 0000000..6ff1fd8
--- /dev/null
+++ b/src/categories/update.pipe.ts
@@ -0,0 +1,17 @@
+import { Injectable, PipeTransform } from '@nestjs/common';
+import { DampLabServicePipe } from '../services/damplab-services.pipe';
+import { CategoryChange } from './dtos/update.dto';
+
+@Injectable()
+export class CategoryUpdatePipe implements PipeTransform<CategoryChange, Promise<CategoryChange>> {
+  constructor(private readonly damplabServicePipe: DampLabServicePipe) {}
+
+  async transform(value: CategoryChange): Promise<CategoryChange> {
+    // If services is includes, make sure they are all valid
+    if (value.services) {
+      await Promise.all(value.services.map((service) => this.damplabServicePipe.transform(service)));
+    }
+
+    return value;
+  }
+}
diff --git a/src/services/damplab-services.module.ts b/src/services/damplab-services.module.ts
index f5717f1..8011782 100644
--- a/src/services/damplab-services.module.ts
+++ b/src/services/damplab-services.module.ts
@@ -4,10 +4,11 @@ import { DampLabServicePipe } from './damplab-services.pipe';
 import { DampLabServicesResolver } from './damplab-services.resolver';
 import { DampLabServices } from './damplab-services.services';
 import { DampLabService, DampLabServiceSchema } from './models/damplab-service.model';
+import { ServiceUpdatePipe } from './update.pipe';
 
 @Module({
   imports: [MongooseModule.forFeature([{ name: DampLabService.name, schema: DampLabServiceSchema }])],
-  providers: [DampLabServicesResolver, DampLabServices, DampLabServicePipe],
+  providers: [DampLabServicesResolver, DampLabServices, DampLabServicePipe, ServiceUpdatePipe],
   exports: [DampLabServices, DampLabServicePipe]
 })
 export class DampLabServicesModule {}
diff --git a/src/services/damplab-services.resolver.ts b/src/services/damplab-services.resolver.ts
index 6a2e02d..5013466 100644
--- a/src/services/damplab-services.resolver.ts
+++ b/src/services/damplab-services.resolver.ts
@@ -1,6 +1,9 @@
-import { Resolver, Query, ResolveField, Parent } from '@nestjs/graphql';
+import { Resolver, Query, ResolveField, Parent, ID, Args, Mutation } from '@nestjs/graphql';
+import { DampLabServicePipe } from './damplab-services.pipe';
 import { DampLabServices } from './damplab-services.services';
+import { ServiceChange } from './dtos/update.dto';
 import { DampLabService } from './models/damplab-service.model';
+import { ServiceUpdatePipe } from './update.pipe';
 
 @Resolver(() => DampLabService)
 export class DampLabServicesResolver {
@@ -11,6 +14,14 @@ export class DampLabServicesResolver {
     return this.dampLabServices.findAll();
   }
 
+  @Mutation(() => DampLabService)
+  async updateService(
+    @Args('service', { type: () => ID }, DampLabServicePipe) service: DampLabService,
+    @Args('changes', { type: () => ServiceChange }, ServiceUpdatePipe) changes: ServiceChange
+  ): Promise<DampLabService> {
+    return this.dampLabServices.update(service, changes);
+  }
+
   /**
    * Resolver which the `allowedConnections` field of the `DampLabService`
    * type. Allows for the recursive search on possible connections.
diff --git a/src/services/damplab-services.services.ts b/src/services/damplab-services.services.ts
index 3b15030..5d9e6ed 100644
--- a/src/services/damplab-services.services.ts
+++ b/src/services/damplab-services.services.ts
@@ -3,6 +3,7 @@ import { DampLabService, DampLabServiceDocument } from './models/damplab-service
 import { InjectModel } from '@nestjs/mongoose';
 import { Model } from 'mongoose';
 import mongoose from 'mongoose';
+import { ServiceChange } from './dtos/update.dto';
 
 @Injectable()
 export class DampLabServices {
@@ -22,4 +23,9 @@ export class DampLabServices {
   async findOne(id: string): Promise<DampLabService | null> {
     return this.dampLabServiceModel.findById(id).exec();
   }
+
+  async update(service: DampLabService, changes: ServiceChange): Promise<DampLabService> {
+    await this.dampLabServiceModel.updateOne({ _id: service._id }, changes);
+    return (await this.dampLabServiceModel.findById(service._id))!;
+  }
 }
diff --git a/src/services/dtos/update.dto.ts b/src/services/dtos/update.dto.ts
new file mode 100644
index 0000000..2084491
--- /dev/null
+++ b/src/services/dtos/update.dto.ts
@@ -0,0 +1,8 @@
+import { DampLabService } from '../models/damplab-service.model';
+import { ID, InputType, OmitType, PartialType, Field } from '@nestjs/graphql';
+
+@InputType()
+export class ServiceChange extends PartialType(OmitType(DampLabService, ['_id', 'allowedConnections'] as const), InputType) {
+  @Field(() => [ID], { nullable: true })
+  allowedConnections: string[];
+}
diff --git a/src/services/update.pipe.ts b/src/services/update.pipe.ts
new file mode 100644
index 0000000..8341ed4
--- /dev/null
+++ b/src/services/update.pipe.ts
@@ -0,0 +1,17 @@
+import { Injectable, PipeTransform } from '@nestjs/common';
+import { DampLabServicePipe } from '../services/damplab-services.pipe';
+import { ServiceChange } from './dtos/update.dto';
+
+@Injectable()
+export class ServiceUpdatePipe implements PipeTransform<ServiceChange, Promise<ServiceChange>> {
+  constructor(private readonly damplabServicePipe: DampLabServicePipe) {}
+
+  async transform(value: ServiceChange): Promise<ServiceChange> {
+    // If services is includes, make sure they are all valid
+    if (value.allowedConnections) {
+      await Promise.all(value.allowedConnections.map((service) => this.damplabServicePipe.transform(service)));
+    }
+
+    return value;
+  }
+}