diff --git a/.github/workflows/exercises.yml b/.github/workflows/exercises.yml
index f4463dda..474312a0 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@560f0647083257e632182be888862d69eeb6f2c4
+        uses: iffy/install-nim@c0887b5bcc85d135a2f7a5abd6c7a68bc2d38574
         with:
           version: "binary:${{ matrix.nim }}"
         env:
diff --git a/.github/workflows/uuids.yml b/.github/workflows/uuids.yml
index 7f4d83d3..27fa1e27 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@560f0647083257e632182be888862d69eeb6f2c4
+      uses: iffy/install-nim@c0887b5bcc85d135a2f7a5abd6c7a68bc2d38574
       with:
         version: "binary:${{ env.NIM_VERSION }}"
       env: