diff --git a/.github/workflows/spec-all.yml b/.github/workflows/spec-all.yml
index 44c77ace..73bbad04 100644
--- a/.github/workflows/spec-all.yml
+++ b/.github/workflows/spec-all.yml
@@ -6,9 +6,9 @@ env:
 
 on:
   push:
-    branches: [ Pharo12 ]
+    branches: [ Pharo13 ]
   pull_request:
-    branches: [ Pharo12 ]
+    branches: [ Pharo13 ]
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
@@ -19,7 +19,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest ]
-        smalltalk: [ Pharo64-12 ]
+        smalltalk: [ Pharo64-13 ]
     runs-on: ${{ matrix.os }}
     name: ${{ matrix.smalltalk }} on ${{ matrix.os }}
     steps:
diff --git a/.github/workflows/spec.yml b/.github/workflows/spec.yml
index 6fc295dd..c49bdd13 100644
--- a/.github/workflows/spec.yml
+++ b/.github/workflows/spec.yml
@@ -6,9 +6,9 @@ env:
 
 on:
   push:
-    branches: [ Pharo12, dev-3.0 ]
+    branches: [ Pharo13, dev-3.0 ]
   pull_request:
-    branches: [ Pharo12, dev-3.0 ]
+    branches: [ Pharo13, dev-3.0 ]
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
@@ -19,7 +19,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest ]
-        smalltalk: [ Pharo64-12 ]
+        smalltalk: [ Pharo64-13 ]
     runs-on: ${{ matrix.os }}
     name: ${{ matrix.smalltalk }} on ${{ matrix.os }}
     steps: