Update SMTP provider to account for a problem in 1.6.0
See https://github.com/apache/airflow/pull/37710
diff --git a/constraints-3.10.txt b/constraints-3.10.txt
index ab90276..110b872 100644
--- a/constraints-3.10.txt
+++ b/constraints-3.10.txt
@@ -166,7 +166,7 @@
apache-airflow-providers-sftp==4.8.1
apache-airflow-providers-singularity==3.4.0
apache-airflow-providers-slack==8.5.1
-apache-airflow-providers-smtp==1.6.0
+apache-airflow-providers-smtp==1.5.0
apache-airflow-providers-snowflake==5.2.1
apache-airflow-providers-sqlite==3.7.0
apache-airflow-providers-ssh==3.10.0
diff --git a/constraints-3.11.txt b/constraints-3.11.txt
index 8e35191..4fd8ce4 100644
--- a/constraints-3.11.txt
+++ b/constraints-3.11.txt
@@ -166,7 +166,7 @@
apache-airflow-providers-sftp==4.8.1
apache-airflow-providers-singularity==3.4.0
apache-airflow-providers-slack==8.5.1
-apache-airflow-providers-smtp==1.6.0
+apache-airflow-providers-smtp==1.5.0
apache-airflow-providers-snowflake==5.2.1
apache-airflow-providers-sqlite==3.7.0
apache-airflow-providers-ssh==3.10.0
diff --git a/constraints-3.8.txt b/constraints-3.8.txt
index 11d87f6..46de0a2 100644
--- a/constraints-3.8.txt
+++ b/constraints-3.8.txt
@@ -166,7 +166,7 @@
apache-airflow-providers-sftp==4.8.1
apache-airflow-providers-singularity==3.4.0
apache-airflow-providers-slack==8.5.1
-apache-airflow-providers-smtp==1.6.0
+apache-airflow-providers-smtp==1.5.0
apache-airflow-providers-snowflake==5.2.1
apache-airflow-providers-sqlite==3.7.0
apache-airflow-providers-ssh==3.10.0
diff --git a/constraints-3.9.txt b/constraints-3.9.txt
index 3e427be..2631781 100644
--- a/constraints-3.9.txt
+++ b/constraints-3.9.txt
@@ -166,7 +166,7 @@
apache-airflow-providers-sftp==4.8.1
apache-airflow-providers-singularity==3.4.0
apache-airflow-providers-slack==8.5.1
-apache-airflow-providers-smtp==1.6.0
+apache-airflow-providers-smtp==1.5.0
apache-airflow-providers-snowflake==5.2.1
apache-airflow-providers-sqlite==3.7.0
apache-airflow-providers-ssh==3.10.0
