diff --git a/requirements-healpy.txt b/requirements-healpy.txt
index 69bad06e3..4c5a1061d 100644
--- a/requirements-healpy.txt
+++ b/requirements-healpy.txt
@@ -3,7 +3,7 @@ astropy==7.2.0 ; python_version >= "3.11" and python_version < "3.15"
 attrs==26.1.0 ; python_version >= "3.11" and python_version < "3.15"
 beartype==0.22.9 ; python_version >= "3.11" and python_version < "3.15"
 boule==0.6.0 ; python_version >= "3.11" and python_version < "3.15"
-certifi==2026.4.22 ; python_version >= "3.11" and python_version < "3.15"
+certifi==2026.5.20 ; python_version >= "3.11" and python_version < "3.15"
 charset-normalizer==3.4.7 ; python_version >= "3.11" and python_version < "3.15"
 colorama==0.4.6 ; python_version >= "3.11" and python_version < "3.15" and platform_system == "Windows"
 contourpy==1.3.3 ; python_version >= "3.11" and python_version < "3.15"
diff --git a/requirements-jax.txt b/requirements-jax.txt
index 9a471bc24..bf83f8844 100644
--- a/requirements-jax.txt
+++ b/requirements-jax.txt
@@ -4,7 +4,7 @@ attrs==26.1.0 ; python_version >= "3.11" and python_version < "3.15"
 autograd==1.8.0 ; python_version >= "3.11" and python_version < "3.15"
 beartype==0.22.9 ; python_version >= "3.11" and python_version < "3.15"
 boule==0.6.0 ; python_version >= "3.11" and python_version < "3.15"
-certifi==2026.4.22 ; python_version >= "3.11" and python_version < "3.15"
+certifi==2026.5.20 ; python_version >= "3.11" and python_version < "3.15"
 charset-normalizer==3.4.7 ; python_version >= "3.11" and python_version < "3.15"
 colorama==0.4.6 ; python_version >= "3.11" and python_version < "3.15" and platform_system == "Windows"
 contourpy==1.3.3 ; python_version >= "3.11" and python_version < "3.15"
diff --git a/requirements-pytorch.txt b/requirements-pytorch.txt
index 97062d50d..d6792d69c 100644
--- a/requirements-pytorch.txt
+++ b/requirements-pytorch.txt
@@ -3,7 +3,7 @@ astropy==7.2.0 ; python_version >= "3.11" and python_version < "3.15"
 attrs==26.1.0 ; python_version >= "3.11" and python_version < "3.15"
 beartype==0.22.9 ; python_version >= "3.11" and python_version < "3.15"
 boule==0.6.0 ; python_version >= "3.11" and python_version < "3.15"
-certifi==2026.4.22 ; python_version >= "3.11" and python_version < "3.15"
+certifi==2026.5.20 ; python_version >= "3.11" and python_version < "3.15"
 charset-normalizer==3.4.7 ; python_version >= "3.11" and python_version < "3.15"
 colorama==0.4.6 ; python_version >= "3.11" and python_version < "3.15" and platform_system == "Windows"
 contourpy==1.3.3 ; python_version >= "3.11" and python_version < "3.15"