diff --git a/Dockerfile b/Dockerfile
index 1b1d552..77569b0 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -131,7 +131,7 @@ RUN \
     certbot-dns-transip \
     certbot-dns-vultr \
     certbot-plugin-gandi \
-    cryptography \
+    cryptography==42.0.7 \
     future \
     requests && \
   echo "**** enable OCSP stapling from base ****" && \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 1e3c4e1..9ceaca9 100755
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -131,7 +131,7 @@ RUN \
     certbot-dns-transip \
     certbot-dns-vultr \
     certbot-plugin-gandi \
-    cryptography \
+    cryptography==42.0.7 \
     future \
     requests && \
   echo "**** enable OCSP stapling from base ****" && \