diff --git a/requirements.txt b/requirements.txt
index b75f1765f..366b3c3fa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,7 @@
 numpy==1.23.3
-pandas==1.5.0
+pandas==1.5.0; platform_machine != 'armv7l'
+# Piwheels doesn't have 1.5.0 yet.
+pandas==1.4.3; platform_machine == 'armv7l'
 pandas-ta==0.3.14b
 
 ccxt==1.93.98
@@ -21,7 +23,7 @@ jinja2==3.1.2
 tables==3.7.0
 blosc==1.10.6
 joblib==1.2.0
-pyarrow==9.0.0
+pyarrow==9.0.0; platform_machine != 'armv7l'
 
 # find first, C search in arrays
 py_find_1st==1.1.5