diff --git a/19.0/apache/Dockerfile b/19.0/apache/Dockerfile
index 5b758999..230b2a31 100644
--- a/19.0/apache/Dockerfile
+++ b/19.0/apache/Dockerfile
@@ -44,6 +44,7 @@ RUN set -ex; \
     docker-php-ext-configure gd --with-freetype --with-jpeg --with-webp; \
     docker-php-ext-configure ldap --with-libdir="lib/$debMultiarch"; \
     docker-php-ext-install -j "$(nproc)" \
+        bcmath \
         exif \
         gd \
         intl \
diff --git a/19.0/fpm-alpine/Dockerfile b/19.0/fpm-alpine/Dockerfile
index 3d1942c2..dba6f693 100644
--- a/19.0/fpm-alpine/Dockerfile
+++ b/19.0/fpm-alpine/Dockerfile
@@ -38,6 +38,7 @@ RUN set -ex; \
     docker-php-ext-configure gd --with-freetype --with-jpeg --with-webp; \
     docker-php-ext-configure ldap; \
     docker-php-ext-install -j "$(nproc)" \
+        bcmath \
         exif \
         gd \
         intl \
diff --git a/19.0/fpm/Dockerfile b/19.0/fpm/Dockerfile
index 0f7a198b..53a3c519 100644
--- a/19.0/fpm/Dockerfile
+++ b/19.0/fpm/Dockerfile
@@ -44,6 +44,7 @@ RUN set -ex; \
     docker-php-ext-configure gd --with-freetype --with-jpeg --with-webp; \
     docker-php-ext-configure ldap --with-libdir="lib/$debMultiarch"; \
     docker-php-ext-install -j "$(nproc)" \
+        bcmath \
         exif \
         gd \
         intl \
diff --git a/Dockerfile-alpine.template b/Dockerfile-alpine.template
index 6cf338a6..7511056c 100644
--- a/Dockerfile-alpine.template
+++ b/Dockerfile-alpine.template
@@ -37,6 +37,7 @@ RUN set -ex; \
     docker-php-ext-configure gd --with-freetype --with-jpeg --with-webp; \
     docker-php-ext-configure ldap; \
     docker-php-ext-install -j "$(nproc)" \
+        bcmath \
         exif \
         gd \
         intl \
diff --git a/Dockerfile-debian.template b/Dockerfile-debian.template
index 361a5eb1..8026cf12 100644
--- a/Dockerfile-debian.template
+++ b/Dockerfile-debian.template
@@ -45,6 +45,7 @@ RUN set -ex; \
     docker-php-ext-configure gmp --with-gmp="/usr/include/$debMultiarch"; \
     docker-php-ext-configure ldap --with-libdir="lib/$debMultiarch"; \
     docker-php-ext-install -j "$(nproc)" \
+        bcmath \
         exif \
         gd \
         intl \
diff --git a/update.sh b/update.sh
index 8cb55e85..918ac8b4 100755
--- a/update.sh
+++ b/update.sh
@@ -147,6 +147,15 @@ function create_variant() {
 			;;
 	esac
 
+	case "$version" in
+		16.*|17.*|18.* )
+			sed -ri -e '
+				\@bcmath@d;
+				' "$dir/Dockerfile"
+			;;
+
+	esac
+
 	# Copy the shell scripts
 	for name in entrypoint cron; do
 		cp "docker-$name.sh" "$dir/$name.sh"