diff --git a/.github/workflows/why2-chat-build.yml b/.github/workflows/why2-chat-build.yml
index 36c77ce..949c140 100644
--- a/.github/workflows/why2-chat-build.yml
+++ b/.github/workflows/why2-chat-build.yml
@@ -38,7 +38,8 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+      - uses: actions/checkout@v2
+      - uses: dtolnay/rust-toolchain@stable
         with:
           ref: development
 
diff --git a/.github/workflows/why2-core-test.yml b/.github/workflows/why2-core-test.yml
index c345c34..1ff5d94 100644
--- a/.github/workflows/why2-core-test.yml
+++ b/.github/workflows/why2-core-test.yml
@@ -39,7 +39,8 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+      - uses: actions/checkout@v2
+      - uses: dtolnay/rust-toolchain@stable
         with:
           ref: development
 
diff --git a/.github/workflows/why2-logger-test.yml b/.github/workflows/why2-logger-test.yml
index 04a9071..ff088e7 100644
--- a/.github/workflows/why2-logger-test.yml
+++ b/.github/workflows/why2-logger-test.yml
@@ -39,7 +39,8 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+      - uses: actions/checkout@v2
+      - uses: dtolnay/rust-toolchain@stable
         with:
           ref: development
 
diff --git a/.github/workflows/why2-project.yml b/.github/workflows/why2-project.yml
index e1bce65..e5b2f51 100644
--- a/.github/workflows/why2-project.yml
+++ b/.github/workflows/why2-project.yml
@@ -35,7 +35,8 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+      - uses: actions/checkout@v2
+      - uses: dtolnay/rust-toolchain@stable
         with:
           ref: development