diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index d4a017a95..71ae6fb4f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,7 +18,7 @@ jobs:
     env:
       OPTIONS: "COV=false LOG_LEVEL=info SKIP_DICHO=true SKIP_REAL_CASES=true SKIP_PERIODIC=true SKIP_SPLIT_CLUSTERING=true"
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - name: Cache
         id: cache
         uses: actions/cache@v2
@@ -38,7 +38,7 @@ jobs:
     env:
       OPTIONS: "COV=false LOG_LEVEL=info TEST=test/lib/heuristics/dichotomious_test.rb"
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - name: Cache
         id: cache
         uses: actions/cache@v2
@@ -58,7 +58,7 @@ jobs:
     env:
       OPTIONS: "COV=false LOG_LEVEL=info TEST=test/real_cases_test.rb"
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - name: Cache
         id: cache
         uses: actions/cache@v2
@@ -78,7 +78,7 @@ jobs:
       env:
         OPTIONS: "COV=false LOG_LEVEL=info TEST=test/real_cases_periodic_test.rb"
       steps:
-        - uses: actions/checkout@v1
+        - uses: actions/checkout@v2
         - name: Cache
           id: cache
           uses: actions/cache@v2
@@ -98,7 +98,7 @@ jobs:
       env:
         OPTIONS: "COV=false LOG_LEVEL=info TEST=test/real_cases_periodic_solver_test.rb"
       steps:
-        - uses: actions/checkout@v1
+        - uses: actions/checkout@v2
         - name: Cache
           id: cache
           uses: actions/cache@v2
@@ -118,7 +118,7 @@ jobs:
       env:
         OPTIONS: "COV=false LOG_LEVEL=info TEST=test/lib/heuristics/periodic_*"
       steps:
-        - uses: actions/checkout@v1
+        - uses: actions/checkout@v2
         - name: Cache
           id: cache
           uses: actions/cache@v2
@@ -138,7 +138,7 @@ jobs:
       env:
         OPTIONS: "COV=false LOG_LEVEL=info TEST=test/lib/interpreters/split_clustering_test.rb"
       steps:
-        - uses: actions/checkout@v1
+        - uses: actions/checkout@v2
         - name: Cache
           id: cache
           uses: actions/cache@v2