diff --git a/.github/workflows/issue_to_jira.yml b/.github/workflows/issue_to_jira.yml
index ae3a4247dd..2f9c45baa7 100644
--- a/.github/workflows/issue_to_jira.yml
+++ b/.github/workflows/issue_to_jira.yml
@@ -9,7 +9,7 @@ permissions: {}
 jobs:
   call-workflow-create-jira-issue:
     if: startsWith(github.repository, 'MiraGeoscience/')  # run on the Mira repo only
-    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-jira-issue_to_jira.yml@v3
+    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-jira-issue_to_jira.yml@89672b26b20a657bed31f84496961abc07166a95 # v3.9.1
     permissions:
       contents: read
       issues: write
diff --git a/.github/workflows/pr_jira_actions.yml b/.github/workflows/pr_jira_actions.yml
index ed9916b8ec..7cf2d9f60a 100644
--- a/.github/workflows/pr_jira_actions.yml
+++ b/.github/workflows/pr_jira_actions.yml
@@ -7,7 +7,7 @@ on:
 jobs:
   call-workflow-pr_jira_actions:
     if: github.event.action != 'edited' || github.event.changes.title != null
-    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-jira-pr_actions.yml@v3
+    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-jira-pr_actions.yml@89672b26b20a657bed31f84496961abc07166a95 # v3.9.1
     permissions:
       contents: read
       pull-requests: write
diff --git a/.github/workflows/python_deploy_dev.yml b/.github/workflows/python_deploy_dev.yml
index c8998ceeb3..b97be9ad23 100644
--- a/.github/workflows/python_deploy_dev.yml
+++ b/.github/workflows/python_deploy_dev.yml
@@ -14,7 +14,7 @@ concurrency:
 jobs:
   call-workflow-conda-publish:
     name: Publish development conda package on JFrog Artifactory
-    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-python-publish_rattler_package.yml@v3
+    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-python-publish_rattler_package.yml@89672b26b20a657bed31f84496961abc07166a95 # v3.9.1
     permissions:
       contents: write
     with:
@@ -29,7 +29,7 @@ jobs:
       JFROG_ARTIFACTORY_TOKEN: ${{ secrets.JFROG_ARTIFACTORY_TOKEN }}
   call-workflow-pypi-publish:
     name: Publish development pypi package (JFrog Artifactory, TestPyPI)
-    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-python-publish_pypi_package.yml@v3
+    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-python-publish_pypi_package.yml@89672b26b20a657bed31f84496961abc07166a95 # v3.9.1
     permissions:
       contents: write
     with:
diff --git a/.github/workflows/python_deploy_prod.yml b/.github/workflows/python_deploy_prod.yml
index 199b32bef9..5fed40bfa5 100644
--- a/.github/workflows/python_deploy_prod.yml
+++ b/.github/workflows/python_deploy_prod.yml
@@ -29,7 +29,7 @@ jobs:
   call-workflow-conda-release:
     name: Publish production Conda package on JFrog Artifactory
     if: ${{ github.event_name == 'release' || github.event.inputs.publish-conda == 'true' }}
-    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-python-release_conda_assets.yml@v3
+    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-python-release_conda_assets.yml@89672b26b20a657bed31f84496961abc07166a95 # v3.9.1
     permissions:
       contents: write
     with:
@@ -41,7 +41,7 @@ jobs:
   call-workflow-pypi-release:
     name: Publish production PyPI package (JFrog Artifactory, PyPI)
     if: ${{ github.event_name == 'release' || github.event.inputs.publish-pypi == 'true' }}
-    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-python-release_pypi_assets.yml@v3
+    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-python-release_pypi_assets.yml@89672b26b20a657bed31f84496961abc07166a95 # v3.9.1
     permissions:
       contents: write
     with:
diff --git a/.github/workflows/security_scan.yml b/.github/workflows/security_scan.yml
index f66335baeb..8efc581bf7 100644
--- a/.github/workflows/security_scan.yml
+++ b/.github/workflows/security_scan.yml
@@ -32,7 +32,7 @@ jobs:
       security-events: write
       contents: read
       actions: read
-    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-zizmor-advanced-security.yml@v3
+    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-zizmor-advanced-security.yml@89672b26b20a657bed31f84496961abc07166a95 # v3.9.1
 
   call-workflow-zizmor-advanced-security:
     name: Zizmor analysis (annotate)
@@ -42,4 +42,4 @@ jobs:
       checks: write
       contents: read
       actions: read
-    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-zizmor-annotate.yml@v3
+    uses: MiraGeoscience/CI-tools/.github/workflows/reusable-zizmor-annotate.yml@89672b26b20a657bed31f84496961abc07166a95 # v3.9.1