diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 22212c6..4962ba6 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -14,12 +14,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       with:
         submodules: true
 
     - name: Set up Ruby
-      uses: ruby/setup-ruby@v1
+      uses: ruby/setup-ruby@4a9ddd6f338a97768b8006bf671dfbad383215f4
       with:
         ruby-version: 3.3.4
         bundler-cache: true
diff --git a/_licenses/mit-0.txt b/_licenses/mit-0.txt
index 1c32b5c..739b992 100644
--- a/_licenses/mit-0.txt
+++ b/_licenses/mit-0.txt
@@ -7,7 +7,7 @@ description: A short and simple permissive license with no conditions, not even
 how: Create a text file (typically named LICENSE or LICENSE.txt) in the root of your source code and copy the text of the license into the file. Replace [year] with the current year and [fullname] with the name (or names) of the copyright holders.
 
 using:
-  rssfs: https://github.com/dertuxmalwieder/rssfs/blob/master/LICENSE
+  Reactive Streams: https://github.com/reactive-streams/reactive-streams-jvm/blob/master/LICENSE
   SOIL2: https://github.com/SpartanJ/SOIL2/blob/master/LICENSE
   Units.NET: https://github.com/angularsen/UnitsNet/blob/master/LICENSE