diff --git a/.github/workflows/build_wheels.yml b/.github/workflows/build_wheels.yml
index c9315bb0e..96be6075c 100644
--- a/.github/workflows/build_wheels.yml
+++ b/.github/workflows/build_wheels.yml
@@ -9,8 +9,8 @@ jobs:
     strategy:
       matrix:
         include:
-          # - os: ubuntu-20.04
-          #   arch: x86_64
+          - os: ubuntu-20.04
+            arch: x86_64
           # - os: macos-latest
           #   arch: x86_64
           - os: windows-latest
diff --git a/pyproject.toml b/pyproject.toml
index 620ed928c..69548b063 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,6 +3,7 @@ requires = ['setuptools', 'cython <3, >=0.21']
 build-backend = "setuptools.build_meta"
 
 [tool.cibuildwheel.linux]
+skip="pp*"
 before-all = [
     "(apt-get update && apt-get install --yes wget) || yum install -y wget zlib libgfortran || brew install wget",
     "wget https://github.com/mmghannam/scip/releases/download/v8.0.3/libscip-centos.zip -O scip.zip",
@@ -13,6 +14,7 @@ environment = { SCIPOPTDIR="$(pwd)/scip", LD_LIBRARY_PATH="$(pwd)/scip/lib:LD_LI
 
 
 [tool.cibuildwheel.macos]
+skip="pp*"
 before-all = [
     "brew install wget zlib gcc",
     "wget https://github.com/mmghannam/scip/releases/download/v8.0.3/libscip-macos.zip -O scip.zip",