<commit_before>diff --git a/9.6/Dockerfile b/9.6/Dockerfile
index 3b96768..186bbb4 100644
--- a/9.6/Dockerfile
+++ b/9.6/Dockerfile
@@ -51 +51 @@ RUN set -ex; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+	gpg --keyserver ipv4.pool.sks-keyservers.net --recv-keys "$key"; \
@@ -57 +57 @@ ENV PG_MAJOR 9.6
-ENV PG_VERSION 9.6.9-1.pgdg90+1
+ENV PG_VERSION 9.6.7-0+deb9u1
@@ -62,0 +63 @@ RUN set -ex; \
+		*) apt-get update;; \<commit_msg>fixes build issue with postgres 9.6<commit_after>diff --git a/9.6/Dockerfile b/9.6/Dockerfile
index 3b96768..a1e81a4 100755
--- a/9.6/Dockerfile
+++ b/9.6/Dockerfile
@@ -24 +24 @@ RUN set -x \
-	&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys <KEY> \
+	&& gpg --keyserver ipv4.pool.sks-keyservers.net --recv-keys <KEY> \
@@ -51 +51 @@ RUN set -ex; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+	gpg --keyserver ipv4.pool.sks-keyservers.net --recv-keys "$key"; \
@@ -57 +57 @@ ENV PG_MAJOR 9.6
-ENV PG_VERSION 9.6.9-1.pgdg90+1
+ENV PG_VERSION 9.6.10-0+deb9u1
@@ -62,0 +63,2 @@ RUN set -ex; \
+	    *) apt-get update; \
+	       ;; \
{'fraction_non_alphanumeric': 0.21441281138790036, 'fraction_numerical': 0.10231316725978648, 'mean_word_length': 2.712871287128713, 'pattern_counts': {'":': 0, '<': 5, '<?xml version=': 0, '>': 5, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '3618460', 'n_tokens_mistral': 580, 'n_tokens_neox': 522, 'n_words': 104}