diff --git a/requirements-dev.txt b/requirements-dev.txt
index a647a5803..f4fea19b1 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -51,7 +51,7 @@ pooch==1.8.2 ; python_version >= "3.11" and python_version < "3.15"
 pycodestyle==2.14.0 ; python_version >= "3.11" and python_version < "3.15"
 pyerfa==2.0.1.5 ; python_version >= "3.11" and python_version < "3.15"
 pygments==2.19.2 ; python_version >= "3.11" and python_version < "3.15"
-pyparsing==3.3.0 ; python_version >= "3.11" and python_version < "3.15"
+pyparsing==3.3.1 ; python_version >= "3.11" and python_version < "3.15"
 pyshtools==4.13.1 ; python_version >= "3.11" and python_version < "3.15"
 pytest==9.0.2 ; python_version >= "3.11" and python_version < "3.15"
 python-dateutil==2.9.0.post0 ; python_version >= "3.11" and python_version < "3.15"
diff --git a/requirements.txt b/requirements.txt
index 7062eed82..cb3ce8643 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ pillow==12.0.0 ; python_version >= "3.11" and python_version < "3.15"
 platformdirs==4.5.1 ; python_version >= "3.11" and python_version < "3.15"
 pooch==1.8.2 ; python_version >= "3.11" and python_version < "3.15"
 pyerfa==2.0.1.5 ; python_version >= "3.11" and python_version < "3.15"
-pyparsing==3.3.0 ; python_version >= "3.11" and python_version < "3.15"
+pyparsing==3.3.1 ; python_version >= "3.11" and python_version < "3.15"
 pyshtools==4.13.1 ; python_version >= "3.11" and python_version < "3.15"
 python-dateutil==2.9.0.post0 ; python_version >= "3.11" and python_version < "3.15"
 pytz==2025.2 ; python_version >= "3.11" and python_version < "3.15"