diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 80aa70cd3..f86c6d35e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ on:
 
 jobs:
   precheck:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     strategy:
       matrix:
         elixir: [1.20.1]
@@ -25,7 +25,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
 
       - name: Use Elixir
-        uses: erlef/setup-beam@fc68ffb90438ef2936bbb3251622353b3dcb2f93
+        uses: erlef/setup-beam@54075bcc5e249e4758d363f27d099f55d843f124  # v1.24.1
         with:
           otp-version: ${{matrix.otp}}
           elixir-version: ${{matrix.elixir}}
@@ -71,7 +71,7 @@ jobs:
         run: bin/ci-check.sh
 
   ci:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
 
     strategy:
       matrix:
@@ -90,7 +90,7 @@ jobs:
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
       - name: Use Elixir ${{matrix.elixir}} / OTP ${{matrix.otp}}
-        uses: erlef/setup-beam@fc68ffb90438ef2936bbb3251622353b3dcb2f93
+        uses: erlef/setup-beam@54075bcc5e249e4758d363f27d099f55d843f124  # v1.24.1
         with:
           otp-version: ${{matrix.otp}}
           elixir-version: ${{matrix.elixir}}
diff --git a/.github/workflows/pr-comment.yml b/.github/workflows/pr-comment.yml
index 52ac80db2..8475615d6 100644
--- a/.github/workflows/pr-comment.yml
+++ b/.github/workflows/pr-comment.yml
@@ -4,7 +4,7 @@ on: [pull_request_target]
 
 jobs:
   pr-comment:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     steps:
       - uses: exercism/pr-commenter-action@f4a6aa5acc07742989788e70fd89cdc0980f0d1e
         with: