diff --git a/.github/workflows/regression_suite.yaml b/.github/workflows/regression_suite.yaml
index ef2373725..dac54768e 100644
--- a/.github/workflows/regression_suite.yaml
+++ b/.github/workflows/regression_suite.yaml
@@ -11,7 +11,7 @@ jobs:
       max-parallel: 4
       fail-fast: false
       matrix:
-        python-version: ['3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.10', '3.11', '3.12']
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/.github/workflows/regression_suite_mac_x86.yaml b/.github/workflows/regression_suite_mac_x86.yaml
index ecde26602..d50d52d62 100644
--- a/.github/workflows/regression_suite_mac_x86.yaml
+++ b/.github/workflows/regression_suite_mac_x86.yaml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ['3.9', '3.10', '3.11']
+        python-version: ['3.10', '3.11']
         os: ['macos-latest']
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/.github/workflows/regression_suite_windows.yaml b/.github/workflows/regression_suite_windows.yaml
index 488f85140..f5e13c483 100644
--- a/.github/workflows/regression_suite_windows.yaml
+++ b/.github/workflows/regression_suite_windows.yaml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ['3.9', '3.10', '3.11']
+        python-version: ['3.10', '3.11']
         os: ['windows-latest']
     runs-on: ${{ matrix.os }}
     steps: