diff --git a/.github/workflows/docker-gdal.yml b/.github/workflows/docker-gdal.yml
index 1ab995e0..8cb19547 100644
--- a/.github/workflows/docker-gdal.yml
+++ b/.github/workflows/docker-gdal.yml
@@ -53,7 +53,7 @@ jobs:
         # used for tests below
         run: |
           curl -LsSf https://astral.sh/uv/install.sh | sh
-          source $HOME/.local/bin/env
+          . $HOME/.local/bin/env
           uv venv .venv
           echo "VIRTUAL_ENV=.venv" >> $GITHUB_ENV
           echo "$PWD/.venv/bin" >> $GITHUB_PATH
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 656a1082..322c3bad 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -67,7 +67,7 @@ jobs:
         # used for tests below
         run: |
           curl -LsSf https://astral.sh/uv/install.sh | sh
-          source $HOME/.local/bin/env
+          . $HOME/.local/bin/env
           uv venv .venv
           echo "VIRTUAL_ENV=.venv" >> $GITHUB_ENV
           echo "$PWD/.venv/bin" >> $GITHUB_PATH
@@ -280,7 +280,7 @@ jobs:
         shell: bash
         run: |
           curl -LsSf https://astral.sh/uv/install.sh | sh
-          source $HOME/.local/bin/env
+          . $HOME/.local/bin/env
           uv venv .venv
           echo "VIRTUAL_ENV=.venv" >> $GITHUB_ENV
           echo "$PWD/.venv/bin" >> $GITHUB_PATH