diff --git a/.changeset/fix-update-block-math-empty-latex.md b/.changeset/fix-update-block-math-empty-latex.md
new file mode 100644
index 0000000000..ddc01e315d
--- /dev/null
+++ b/.changeset/fix-update-block-math-empty-latex.md
@@ -0,0 +1,5 @@
+---
+"@tiptap/extension-mathematics": patch
+---
+
+Fix `updateBlockMath` silently ignoring `latex: ''`. The command used a falsy fallback (`latex || node.attrs.latex`) that treated an explicit empty string the same as `undefined`, leaving the node unchanged. It now uses `latex ?? node.attrs.latex`, so callers can clear the rendered LaTeX with an empty string.
diff --git a/.github/workflows/notify.yml b/.github/workflows/notify.yml
index 6162e6e4cb..55d04ea1a7 100644
--- a/.github/workflows/notify.yml
+++ b/.github/workflows/notify.yml
@@ -28,7 +28,7 @@ jobs:
     permissions: {}
     steps:
       - name: Send Slack release notification
-        uses: slackapi/slack-github-action@v3.0.1
+        uses: slackapi/slack-github-action@v3.0.3
         with:
           webhook: ${{ secrets.SLACK_WEBHOOK_URL }}
           webhook-type: webhook-trigger
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index dbe15e64bb..79c0835710 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -147,7 +147,7 @@ jobs:
 
     steps:
       - name: Send Slack notification
-        uses: slackapi/slack-github-action@v3.0.1
+        uses: slackapi/slack-github-action@v3.0.3
         with:
           webhook: ${{ secrets.SLACK_WEBHOOK_URL }}
           webhook-type: webhook-trigger
@@ -168,7 +168,7 @@ jobs:
 
     steps:
       - name: Send Slack failure notification
-        uses: slackapi/slack-github-action@v3.0.1
+        uses: slackapi/slack-github-action@v3.0.3
         with:
           webhook: ${{ secrets.SLACK_WEBHOOK_URL }}
           webhook-type: webhook-trigger
diff --git a/packages/extension-mathematics/__tests__/blockMath.spec.ts b/packages/extension-mathematics/__tests__/blockMath.spec.ts
index 2621bc0af1..2bb5a83566 100644
--- a/packages/extension-mathematics/__tests__/blockMath.spec.ts
+++ b/packages/extension-mathematics/__tests__/blockMath.spec.ts
@@ -5,7 +5,7 @@ import Paragraph from '@tiptap/extension-paragraph'
 import Text from '@tiptap/extension-text'
 import { afterEach, describe, expect, it } from 'vitest'
 
-import { BlockMath } from '../src/index.js'
+import { BlockMath, InlineMath } from '../src/index.js'
 
 describe('BlockMath', () => {
   let editor: Editor
@@ -99,4 +99,50 @@ describe('BlockMath', () => {
       })
     })
   })
+
+  describe('updateBlockMath', () => {
+    function createEditor(latex: string) {
+      return new Editor({
+        extensions: [Document, Paragraph, Text, BlockMath],
+        content: {
+          type: 'doc',
+          content: [{ type: 'blockMath', attrs: { latex } }],
+        },
+      })
+    }
+
+    it('clears the latex attribute when given an empty string', () => {
+      editor = createEditor('x^2')
+
+      editor.commands.updateBlockMath({ latex: '', pos: 0 })
+
+      expect(editor.state.doc.firstChild?.attrs.latex).toBe('')
+    })
+
+    it('matches updateInlineMath behavior when clearing latex with an empty string', () => {
+      const blockEditor = createEditor('x^2')
+      blockEditor.commands.updateBlockMath({ latex: '', pos: 0 })
+      const blockEmpty = blockEditor.state.doc.firstChild?.attrs.latex
+      blockEditor.destroy()
+
+      const inlineEditor = new Editor({
+        extensions: [Document, Paragraph, Text, InlineMath],
+        content: {
+          type: 'doc',
+          content: [
+            {
+              type: 'paragraph',
+              content: [{ type: 'inlineMath', attrs: { latex: 'x^2' } }],
+            },
+          ],
+        },
+      })
+      const inlinePos = 1
+      inlineEditor.commands.updateInlineMath({ latex: '', pos: inlinePos })
+      const inlineEmpty = inlineEditor.state.doc.nodeAt(inlinePos)?.attrs.latex
+      inlineEditor.destroy()
+
+      expect(blockEmpty).toBe(inlineEmpty)
+    })
+  })
 })
diff --git a/packages/extension-mathematics/src/extensions/BlockMath.ts b/packages/extension-mathematics/src/extensions/BlockMath.ts
index bc10017708..3da6bccde2 100644
--- a/packages/extension-mathematics/src/extensions/BlockMath.ts
+++ b/packages/extension-mathematics/src/extensions/BlockMath.ts
@@ -157,7 +157,7 @@ export const BlockMath = Node.create<BlockMathOptions>({
 
           tr.setNodeMarkup(pos, this.type, {
             ...node.attrs,
-            latex: latex || node.attrs.latex,
+            latex: latex ?? node.attrs.latex,
           })
 
           return true