diff --git a/.github/workflows/make-pdf-1-select.yml b/.github/workflows/make-pdf-1-select.yml
index 167d57f44..841feb584 100644
--- a/.github/workflows/make-pdf-1-select.yml
+++ b/.github/workflows/make-pdf-1-select.yml
@@ -38,7 +38,7 @@ jobs:
             hpmor*.pdf
             hpmor*.toc
             hpmor*.xdv
-          key: tex-cache
+          key: latex
 
       - name: ls chapters
         run: ls -l chapters/
diff --git a/.github/workflows/make-pdf-6-parallel.yml b/.github/workflows/make-pdf-6-parallel.yml
index 2b3673fa5..e1a9c43c0 100644
--- a/.github/workflows/make-pdf-6-parallel.yml
+++ b/.github/workflows/make-pdf-6-parallel.yml
@@ -28,7 +28,7 @@ jobs:
             hpmor*.pdf
             hpmor*.toc
             hpmor*.xdv
-          key: tex-cache
+          key: latex
 
       - name: install requirements
         run: sh scripts/install_requirements_pdf.sh > /dev/null
diff --git a/.github/workflows/make-pdf-all-serial.yml b/.github/workflows/make-pdf-all-serial.yml
index fc14f8e1f..d420b1fb7 100644
--- a/.github/workflows/make-pdf-all-serial.yml
+++ b/.github/workflows/make-pdf-all-serial.yml
@@ -26,7 +26,7 @@ jobs:
             hpmor*.pdf
             hpmor*.toc
             hpmor*.xdv
-          key: tex-cache
+          key: latex
 
       - name: install requirements
         run: |