diff --git a/Pipfile b/Pipfile
index 3000d183f..1a5d6f035 100644
--- a/Pipfile
+++ b/Pipfile
@@ -21,7 +21,7 @@ fuzzywuzzy = {extras = ["speedup"], version = "*"}
 gunicorn = "*"
 imap-tools = "*"
 langdetect = "*"
-numpy = "~=1.21.0"
+numpy = "~=1.20.0"
 pathvalidate = "*"
 pillow = "~=8.1"
 pikepdf = "~=2.5"
diff --git a/Pipfile.lock b/Pipfile.lock
index edd0f08f9..4f297844d 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "f1450428542c1cccbfc688c658a4417e8e5eb50bb9502fce0d9ebf27cb94a2e4"
+            "sha256": "e574568592f15d69f1126bd8057bddee0fc7d41df38a81eda24658628cfbb8fd"
         },
         "pipfile-spec": 6,
         "requires": {},
@@ -607,40 +607,35 @@
         },
         "numpy": {
             "hashes": [
-                "sha256:09858463db6dd9f78b2a1a05c93f3b33d4f65975771e90d2cf7aadb7c2f66edf",
-                "sha256:209666ce9d4a817e8a4597cd475b71b4878a85fa4b8db41d79fdb4fdee01dde2",
-                "sha256:298156f4d3d46815eaf0fcf0a03f9625fc7631692bd1ad851517ab93c3168fc6",
-                "sha256:30fc68307c0155d2a75ad19844224be0f2c6f06572d958db4e2053f816b859ad",
-                "sha256:423216d8afc5923b15df86037c6053bf030d15cc9e3224206ef868c2d63dd6dc",
-                "sha256:426a00b68b0d21f2deb2ace3c6d677e611ad5a612d2c76494e24a562a930c254",
-                "sha256:466e682264b14982012887e90346d33435c984b7fead7b85e634903795c8fdb0",
-                "sha256:51a7b9db0a2941434cd930dacaafe0fc9da8f3d6157f9d12f761bbde93f46218",
-                "sha256:52a664323273c08f3b473548bf87c8145b7513afd63e4ebba8496ecd3853df13",
-                "sha256:550564024dc5ceee9421a86fc0fb378aa9d222d4d0f858f6669eff7410c89bef",
-                "sha256:5de64950137f3a50b76ce93556db392e8f1f954c2d8207f78a92d1f79aa9f737",
-                "sha256:640c1ccfd56724f2955c237b6ccce2e5b8607c3bc1cc51d3933b8c48d1da3723",
-                "sha256:7fdc7689daf3b845934d67cb221ba8d250fdca20ac0334fea32f7091b93f00d3",
-                "sha256:805459ad8baaf815883d0d6f86e45b3b0b67d823a8f3fa39b1ed9c45eaf5edf1",
-                "sha256:92a0ab128b07799dd5b9077a9af075a63467d03ebac6f8a93e6440abfea4120d",
-                "sha256:9f2dc79c093f6c5113718d3d90c283f11463d77daa4e83aeeac088ec6a0bda52",
-                "sha256:a5109345f5ce7ddb3840f5970de71c34a0ff7fceb133c9441283bb8250f532a3",
-                "sha256:a55e4d81c4260386f71d22294795c87609164e22b28ba0d435850fbdf82fc0c5",
-                "sha256:a9da45b748caad72ea4a4ed57e9cd382089f33c5ec330a804eb420a496fa760f",
-                "sha256:b160b9a99ecc6559d9e6d461b95c8eec21461b332f80267ad2c10394b9503496",
-                "sha256:b342064e647d099ca765f19672696ad50c953cac95b566af1492fd142283580f",
-                "sha256:b5e8590b9245803c849e09bae070a8e1ff444f45e3f0bed558dd722119eea724",
-                "sha256:bf75d5825ef47aa51d669b03ce635ecb84d69311e05eccea083f31c7570c9931",
-                "sha256:c01b59b33c7c3ba90744f2c695be571a3bd40ab2ba7f3d169ffa6db3cfba614f",
-                "sha256:d96a6a7d74af56feb11e9a443150216578ea07b7450f7c05df40eec90af7f4a7",
-                "sha256:dd0e3651d210068d13e18503d75aaa45656eef51ef0b261f891788589db2cc38",
-                "sha256:e167b9805de54367dcb2043519382be541117503ce99e3291cc9b41ca0a83557",
-                "sha256:e42029e184008a5fd3d819323345e25e2337b0ac7f5c135b7623308530209d57",
-                "sha256:e6c1fb5fee36077f484224cecc5ac10ec6d80444eae16b98d0a09863813015a3",
-                "sha256:f545c082eeb09ae678dd451a1b1dbf17babd8a0d7adea02897a76e639afca310",
-                "sha256:fde50062d67d805bc96f1a9ecc0d37bfc2a8f02b937d2c50824d186aa91f2419"
+                "sha256:1676b0a292dd3c99e49305a16d7a9f42a4ab60ec522eac0d3dd20cdf362ac010",
+                "sha256:16f221035e8bd19b9dc9a57159e38d2dd060b48e93e1d843c49cb370b0f415fd",
+                "sha256:43909c8bb289c382170e0282158a38cf306a8ad2ff6dfadc447e90f9961bef43",
+                "sha256:4c020adbaa398721cd5e30c5aab52b505efcd35c3b0156e800245c1274c96962",
+                "sha256:4e465afc3b96dbc80cf4a5273e5e2b1e3451286361b4af70ce1adb2984d392f9",
+                "sha256:55b745fca0a5ab738647d0e4db099bd0a23279c32b31a783ad2ccea729e632df",
+                "sha256:5d050e1e4bc9ddb8656d7b4f414557720ddcca23a5b88dd7cff65e847864c400",
+                "sha256:637d827248f447e63585ca3f4a7d2dfaa882e094df6cfa177cc9cf9cd6cdf6d2",
+                "sha256:6690080810f77485667bfbff4f69d717c3be25e5b11bb2073e76bb3f578d99b4",
+                "sha256:66fbc6fed94a13b9801fb70b96ff30605ab0a123e775a5e7a26938b717c5d71a",
+                "sha256:67d44acb72c31a97a3d5d33d103ab06d8ac20770e1c5ad81bdb3f0c086a56cf6",
+                "sha256:6ca2b85a5997dabc38301a22ee43c82adcb53ff660b89ee88dded6b33687e1d8",
+                "sha256:6e51534e78d14b4a009a062641f465cfaba4fdcb046c3ac0b1f61dd97c861b1b",
+                "sha256:70eb5808127284c4e5c9e836208e09d685a7978b6a216db85960b1a112eeace8",
+                "sha256:830b044f4e64a76ba71448fce6e604c0fc47a0e54d8f6467be23749ac2cbd2fb",
+                "sha256:8b7bb4b9280da3b2856cb1fc425932f46fba609819ee1c62256f61799e6a51d2",
+                "sha256:a9c65473ebc342715cb2d7926ff1e202c26376c0dcaaee85a1fd4b8d8c1d3b2f",
+                "sha256:c1c09247ccea742525bdb5f4b5ceeacb34f95731647fe55774aa36557dbb5fa4",
+                "sha256:c5bf0e132acf7557fc9bb8ded8b53bbbbea8892f3c9a1738205878ca9434206a",
+                "sha256:d840d80623c96696fab0d15489f49425bec1c0f47f3bf0b3362ce0c75dbad993",
+                "sha256:db250fd3e90117e0312b611574cd1b3f78bec046783195075cbd7ba9c3d73f16",
+                "sha256:e515c9a93aebe27166ec9593411c58494fa98e5fcc219e47260d9ab8a1cc7f9f",
+                "sha256:e55185e51b18d788e49fe8305fd73ef4470596b33fc2c1ceb304566b99c71a69",
+                "sha256:ea9cff01e75a956dbee133fa8e5b68f2f92175233de2f88de3a682dd94deda65",
+                "sha256:f1452578d0516283c87608a5a5548b0cdde15b99650efdfd85182102ef7a7c17",
+                "sha256:f39a995e47cb8649673cfa0579fbdd1cdd33ea497d1728a6cb194d6252268e48"
             ],
             "index": "pypi",
-            "version": "==1.21.2"
+            "version": "==1.20.3"
         },
         "ocrmypdf": {
             "hashes": [
diff --git a/requirements.txt b/requirements.txt
index 0dab262f9..7fd7b98ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -54,7 +54,7 @@ joblib==1.0.1; python_version >= '3.6'
 langdetect==1.0.9
 lxml==4.6.3; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
 msgpack==1.0.2
-numpy==1.21.2
+numpy==1.20.3
 ocrmypdf==12.3.2
 pathvalidate==2.4.1
 pdfminer.six==20201018