diff --git a/package-lock.json b/package-lock.json
index bed88e9..c7cb6b9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11734,9 +11734,9 @@
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
     },
     "sartography-workflow-lib": {
-      "version": "0.0.59",
-      "resolved": "https://registry.npmjs.org/sartography-workflow-lib/-/sartography-workflow-lib-0.0.59.tgz",
-      "integrity": "sha512-Aylrdco6fei7P4VAF+ZG+q3F3TJLkyobPmzGJDe+8vfZ5jlUJ+EffWKFV6LKCdLdkaV3oYRpo4voPnm1OvuRSA=="
+      "version": "0.0.61",
+      "resolved": "https://registry.npmjs.org/sartography-workflow-lib/-/sartography-workflow-lib-0.0.61.tgz",
+      "integrity": "sha512-Gv3wZO4RTmApGeQc4SRoH5ioH+BBscFfwMZ9DmhrY7wsnWh/Zym9TjRYd4cEygVjlHsgSY6CAqiDMOxZ6Grf6A=="
     },
     "sass": {
       "version": "1.23.3",
diff --git a/package.json b/package.json
index 94d1ad2..db1da6e 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
     "dmn-js-properties-panel": "^0.3.4",
     "file-saver": "^2.0.2",
     "rxjs": "~6.5.4",
-    "sartography-workflow-lib": "^0.0.59",
+    "sartography-workflow-lib": "^0.0.61",
     "tslib": "^1.10.0",
     "uuid": "^7.0.0",
     "zone.js": "~0.10.2"
diff --git a/src/app/_dialogs/workflow-spec-category-dialog/workflow-spec-category-dialog.component.html b/src/app/_dialogs/workflow-spec-category-dialog/workflow-spec-category-dialog.component.html
index bbca394..a1fa962 100644
--- a/src/app/_dialogs/workflow-spec-category-dialog/workflow-spec-category-dialog.component.html
+++ b/src/app/_dialogs/workflow-spec-category-dialog/workflow-spec-category-dialog.component.html
@@ -1,5 +1,5 @@
 <div mat-dialog-title>
-  <h1>Workflow Specification</h1>
+  <h1>Workflow Spec Category</h1>
 </div>
 
 <div mat-dialog-content>
diff --git a/src/app/_dialogs/workflow-spec-category-dialog/workflow-spec-category-dialog.component.ts b/src/app/_dialogs/workflow-spec-category-dialog/workflow-spec-category-dialog.component.ts
index 6506d61..ae890f8 100644
--- a/src/app/_dialogs/workflow-spec-category-dialog/workflow-spec-category-dialog.component.ts
+++ b/src/app/_dialogs/workflow-spec-category-dialog/workflow-spec-category-dialog.component.ts
@@ -19,13 +19,12 @@ export class WorkflowSpecCategoryDialogComponent {
     {
       key: 'id',
       type: 'input',
-      defaultValue: this.data.id || uuidv4(),
+      defaultValue: this.data.id,
       templateOptions: {
         label: 'ID',
-        placeholder: 'UUID of workflow specification',
-        description: 'This is an autogenerated unique ID and is not editable.',
+        type: 'number',
+        placeholder: 'ID of workflow spec category',
         required: true,
-        disabled: true,
       },
     },
     {
@@ -34,7 +33,7 @@ export class WorkflowSpecCategoryDialogComponent {
       defaultValue: this.data.name,
       templateOptions: {
         label: 'Name',
-        placeholder: 'Name of workflow specification',
+        placeholder: 'Name of workflow spec category',
         description: 'Enter a name, in lowercase letters, separated by underscores, that is easy for you to remember.' +
           'It will be converted to all_lowercase_with_underscores when you save.',
         required: true,
@@ -46,23 +45,12 @@ export class WorkflowSpecCategoryDialogComponent {
       defaultValue: this.data.display_name,
       templateOptions: {
         label: 'Display Name',
-        placeholder: 'Title of the workflow specification',
-        description: 'This is a human readable title for the workflow specification,' +
+        placeholder: 'Title of the workflow spec category',
+        description: 'This is a human-readable title for the workflow spec category,' +
           'which should be easy for others to read and remember.',
         required: true,
       },
     },
-    {
-      key: 'description',
-      type: 'textarea',
-      defaultValue: this.data.description,
-      templateOptions: {
-        label: 'Description',
-        placeholder: 'Description of workflow specification',
-        description: 'Write a few sentences explaining to users why this workflow exists and what it should be used for.',
-        required: true,
-      },
-    },
   ];
 
   constructor(
diff --git a/src/app/_dialogs/workflow-spec-dialog/workflow-spec-dialog.component.ts b/src/app/_dialogs/workflow-spec-dialog/workflow-spec-dialog.component.ts
index 7413e68..d741888 100644
--- a/src/app/_dialogs/workflow-spec-dialog/workflow-spec-dialog.component.ts
+++ b/src/app/_dialogs/workflow-spec-dialog/workflow-spec-dialog.component.ts
@@ -47,7 +47,7 @@ export class WorkflowSpecDialogComponent {
       templateOptions: {
         label: 'Display Name',
         placeholder: 'Title of the workflow specification',
-        description: 'This is a human readable title for the workflow specification,' +
+        description: 'This is a human-readable title for the workflow specification,' +
           'which should be easy for others to read and remember.',
         required: true,
       },
diff --git a/src/app/_interfaces/dialog-data.ts b/src/app/_interfaces/dialog-data.ts
index 79b061a..f525b32 100644
--- a/src/app/_interfaces/dialog-data.ts
+++ b/src/app/_interfaces/dialog-data.ts
@@ -21,7 +21,7 @@ export interface WorkflowSpecDialogData {
 }
 
 export interface WorkflowSpecCategoryDialogData {
-  id: string;
+  id: number;
   name: string;
   display_name: string;
 }
diff --git a/src/app/workflow-spec-list/workflow-spec-list.component.html b/src/app/workflow-spec-list/workflow-spec-list.component.html
index 5a961d4..e1af6d9 100644
--- a/src/app/workflow-spec-list/workflow-spec-list.component.html
+++ b/src/app/workflow-spec-list/workflow-spec-list.component.html
@@ -6,7 +6,7 @@
       <mat-icon>library_add</mat-icon>
       Add new workflow specification
     </button>
-    <button mat-flat-button color="primary" (click)="addWorkflowSpecCategory()">
+    <button mat-flat-button color="primary" (click)="editWorkflowSpecCategory()">
       <mat-icon>library_add</mat-icon>
       Add category
     </button>
diff --git a/src/app/workflow-spec-list/workflow-spec-list.component.ts b/src/app/workflow-spec-list/workflow-spec-list.component.ts
index 064c7ae..55ec975 100644
--- a/src/app/workflow-spec-list/workflow-spec-list.component.ts
+++ b/src/app/workflow-spec-list/workflow-spec-list.component.ts
@@ -152,11 +152,11 @@ export class WorkflowSpecListComponent implements OnInit {
     }
   }
 
-  private _upsertWorkflowCategorySpecification(data: WorkflowSpecCategoryDialogData) {
+  private _upsertWorkflowSpecCategory(data: WorkflowSpecCategoryDialogData) {
     if (data.id && data.name && data.display_name) {
 
       // Save old workflow spec id, in case it's changed
-      const specId = this.selectedSpec ? this.selectedSpec.id : undefined;
+      const catId = this.selectedCat ? this.selectedCat.id : undefined;
 
       const newCat: WorkflowSpecCategory = {
         id: data.id,
@@ -164,8 +164,8 @@ export class WorkflowSpecListComponent implements OnInit {
         display_name: data.display_name,
       };
 
-      if (specId) {
-        this._updateWorkflowSpecCategory(specId, newCat);
+      if (catId) {
+        this._updateWorkflowSpecCategory(catId, newCat);
       } else {
         this._addWorkflowSpecCategory(newCat);
       }
@@ -186,20 +186,6 @@ export class WorkflowSpecListComponent implements OnInit {
     });
   }
 
-  private _updateWorkflowSpecCategory(specId: string, newCat: WorkflowSpecCategory) {
-    this.api.updateWorkflowSpecCategory(specId, newCat).subscribe(spec => {
-      this._loadWorkflowSpecs();
-      this._displayMessage('Saved changes to workflow spec.');
-    });
-  }
-
-  private _addWorkflowSpecCategory(newCat: WorkflowSpecCategory) {
-    this.api.addWorkflowSpecCategory(newCat).subscribe(spec => {
-      this._loadWorkflowSpecs();
-      this._displayMessage('Saved new workflow spec.');
-    });
-  }
-
   private _deleteWorkflowSpec(workflowSpec: WorkflowSpec) {
     this.api.deleteWorkflowSpecification(workflowSpec.id).subscribe(() => {
       this._loadWorkflowSpecs();
@@ -207,12 +193,30 @@ export class WorkflowSpecListComponent implements OnInit {
     });
   }
 
+  private _updateWorkflowSpecCategory(catId: number, newCat: WorkflowSpecCategory) {
+    this.api.updateWorkflowSpecCategory(catId, newCat).subscribe(spec => {
+      this._loadWorkflowSpecs();
+      this._displayMessage('Saved changes to workflow spec category.');
+    });
+  }
+
+  private _addWorkflowSpecCategory(newCat: WorkflowSpecCategory) {
+    this.api.addWorkflowSpecCategory(newCat).subscribe(spec => {
+      this._loadWorkflowSpecs();
+      this._displayMessage('Saved new workflow spec category.');
+    });
+  }
+
+  private _deleteWorkflowSpecCategory(workflowSpecCategory: WorkflowSpecCategory) {
+    this.api.deleteWorkflowSpecCategory(workflowSpecCategory.id).subscribe(() => {
+      this._loadWorkflowSpecs();
+      this._displayMessage(`Deleted workflow spec category ${workflowSpecCategory.name}.`);
+    });
+  }
+
   private _displayMessage(message: string) {
     this.snackBar.open(message, 'Ok', {duration: 3000});
   }
 
-  addWorkflowSpecCategory() {
-
-  }
 }