diff --git a/.github/workflows/exercises.yml b/.github/workflows/exercises.yml
index d8c38b45..7cd7abcc 100644
--- a/.github/workflows/exercises.yml
+++ b/.github/workflows/exercises.yml
@@ -38,7 +38,7 @@ jobs:
 
       - name: Install Nim (non-devel)
         if: matrix.nim != 'devel'
-        uses: iffy/install-nim@2546aaf825947f6bf76be75ff78d74176992e99d
+        uses: iffy/install-nim@25e9ede26d630a40bb8ecb9ce75479e281e717bf
         with:
           version: "binary:${{ matrix.nim }}"
         env:
diff --git a/.github/workflows/uuids.yml b/.github/workflows/uuids.yml
index b3a919c5..f0f08998 100644
--- a/.github/workflows/uuids.yml
+++ b/.github/workflows/uuids.yml
@@ -24,7 +24,7 @@ jobs:
 
     - name: Install Nim
       if: steps.cache-uuids.outputs.cache-hit != 'true'
-      uses: iffy/install-nim@2546aaf825947f6bf76be75ff78d74176992e99d
+      uses: iffy/install-nim@25e9ede26d630a40bb8ecb9ce75479e281e717bf
       with:
         version: "binary:${{ env.NIM_VERSION }}"
       env: