diff --git a/.github/workflows/pypi.yml b/.github/workflows/pypi.yml
index c138f205..9ffe6a0c 100644
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -5,9 +5,9 @@ name: PyPI tests
 
 on:
   push:
-    branches: [ "-pygmtsar" ]
+    branches: [ "pygmtsar" ]
   pull_request:
-    branches: [ "-pygmtsar" ]
+    branches: [ "pygmtsar" ]
 
 permissions:
   contents: read
@@ -47,6 +47,8 @@ jobs:
       run: |
         git clone --branch master https://github.com/gmtsar/gmtsar GMTSAR
         cd GMTSAR
+        # revert recent broken commit
+        git checkout e98ebc0f4164939a4780b1534bac186924d7c998
         autoconf
         ./configure --with-orbits-dir=/tmp CFLAGS='-z muldefs' LDFLAGS='-z muldefs'
         make CFLAGS='-z muldefs' LDFLAGS='-z muldefs'
@@ -117,6 +119,8 @@ jobs:
       run: |
         git clone --branch master https://github.com/gmtsar/gmtsar GMTSAR
         cd GMTSAR
+        # revert recent broken commit
+        git checkout e98ebc0f4164939a4780b1534bac186924d7c998
         autoconf
         ./configure --with-orbits-dir=/tmp CFLAGS='-z muldefs' LDFLAGS='-z muldefs'
         make CFLAGS='-z muldefs' LDFLAGS='-z muldefs'
@@ -181,6 +185,8 @@ jobs:
       run: |
         git clone --branch master https://github.com/gmtsar/gmtsar GMTSAR
         cd GMTSAR
+        # revert recent broken commit
+        git checkout e98ebc0f4164939a4780b1534bac186924d7c998
         autoconf
         ./configure --with-orbits-dir=/tmp CFLAGS='-z muldefs' LDFLAGS='-z muldefs'
         make CFLAGS='-z muldefs' LDFLAGS='-z muldefs'
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index f831f980..e6479e5a 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -115,6 +115,8 @@ jobs:
       run: |
         git clone --branch master https://github.com/gmtsar/gmtsar GMTSAR
         cd GMTSAR
+        # revert recent broken commit
+        git checkout e98ebc0f4164939a4780b1534bac186924d7c998
         autoconf
         ./configure --with-orbits-dir=/tmp CFLAGS='-z muldefs' LDFLAGS='-z muldefs'
         make CFLAGS='-z muldefs' LDFLAGS='-z muldefs'
@@ -175,6 +177,8 @@ jobs:
       run: |
         git clone --branch master https://github.com/gmtsar/gmtsar GMTSAR
         cd GMTSAR
+        # revert recent broken commit
+        git checkout e98ebc0f4164939a4780b1534bac186924d7c998
         autoconf
         ./configure --with-orbits-dir=/tmp CFLAGS='-z muldefs' LDFLAGS='-z muldefs'
         make CFLAGS='-z muldefs' LDFLAGS='-z muldefs'