diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 18a854aa4..5b312a113 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ '3.8', '3.x' ]
+        python-version: [ '3.8' ]
 
     name: dists & docs ${{ matrix.python-version }}
     steps:
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index f5ef06089..dcb59be29 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ '3.8', '3.x' ]
+        python-version: [ '3.8' ]
 
     name: check ${{ matrix.python-version }}
     steps:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a9a81fa5e..00c0e74b7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ '3.8', '3.x' ]
+        python-version: [ '3.8' ]
 
     name: pytest ${{ matrix.python-version }}
     steps: